Fathom to Angstrom Converter

Convert fathoms to angstroms with our free online length converter.

Quick Answer

1 Fathom = 18288000000 angstroms

Formula: Fathom × conversion factor = Angstrom

Use the calculator below for instant, accurate conversions.

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All conversion formulas on UnitsConverter.io have been verified against NIST (National Institute of Standards and Technology) guidelines and international SI standards. Our calculations are accurate to 10 decimal places for standard conversions and use arbitrary precision arithmetic for astronomical units.

Last verified: February 2026Reviewed by: Sam Mathew, Software Engineer

Fathom to Angstrom Calculator

How to Use the Fathom to Angstrom Calculator:

  1. Enter the value you want to convert in the 'From' field (Fathom).
  2. The converted value in Angstrom will appear automatically in the 'To' field.
  3. Use the dropdown menus to select different units within the Length category.
  4. Click the swap button (⇌) to reverse the conversion direction.
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How to Convert Fathom to Angstrom: Step-by-Step Guide

Converting Fathom to Angstrom involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

1 Fathom = 1.8288e+10 angstroms

Example Calculation:

Convert 10 fathoms: 10 × 1.8288e+10 = 1.8288e+11 angstroms

Disclaimer: For Reference Only

These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.

Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.

What is a Fathom and a Angstrom?

The Six-Foot Maritime Standard

The fathom is defined as exactly 6 feet in the imperial and U.S. customary measurement systems.

Precise equivalents:

  • 6 feet (by definition)
  • 2 yards (6 ft ÷ 3 ft/yd)
  • 72 inches (6 ft × 12 in/ft)
  • 1.8288 meters (exactly, using 1 ft = 0.3048 m)
  • 182.88 centimeters

Historical basis: The arm span of an average man with arms fully outstretched, measured from fingertip to fingertip.

Arm Span Origins

Old English "fæthm":

  • Primary meaning: To embrace, encircle with outstretched arms
  • Secondary meaning: The distance between fingertips when arms are extended

Practical measurement: Sailors hauling in sounding lines (weighted ropes for measuring depth) would pull hand-over-hand, with each arm span representing one fathom. This created a natural counting method:

  1. Drop weighted line overboard
  2. Haul in, counting arm spans
  3. Number of arm spans = depth in fathoms

Standardization necessity: Since arm spans varied (5.5-6.5 feet typically), maritime commerce required a fixed standard. The British settled on exactly 6 feet, matching the standardized foot of 12 inches.

Nautical Charts and Depth Contours

Fathom lines: Nautical charts show depth contours (lines connecting points of equal depth) traditionally measured in fathoms.

Common contour intervals:

  • 1, 2, 3, 5, 10 fathoms: Shallow coastal waters
  • 20, 50, 100 fathoms: Coastal navigation
  • 500, 1,000 fathoms: Deep ocean

Chart notation: Depths written as plain numbers on charts (e.g., "45") indicate 45 fathoms unless otherwise specified. Modern charts often include a note: "Depths in fathoms" or "Depths in meters."

Anchor Cable and Chain

Shackle: One "shackle" of anchor chain traditionally equals 15 fathoms (90 feet / 27.43 m) in the Royal Navy and many navies worldwide.

Anchoring depth rule: Ships typically anchor with a scope (ratio of chain length to water depth) of 5:1 to 7:1 for safety.

Example:

  • Water depth: 10 fathoms (60 feet)
  • Required chain: 50-70 fathoms (300-420 feet)
  • That's 3.3 to 4.7 shackles

The Angstrom (symbol Å) is a non-SI unit of length equal to exactly 10⁻¹⁰ meters (one ten-billionth of a meter) or 0.1 nanometers (nm). While not part of the modern International System of Units (SI), it remains widely used in various scientific fields due to its convenient scale for atomic and molecular dimensions.

The Angstrom provides a direct way to express sizes at the sub-nanometer level without resorting to fractions or powers of ten. For example, expressing a carbon-carbon bond as "1.54 Å" is more intuitive than "0.154 nm" or "154 pm" for scientists working at the atomic scale.

Relationship to other units:

  • 1 Angstrom = 0.1 nanometers (nm)
  • 1 Angstrom = 100 picometers (pm)
  • 1 Angstrom = 0.0001 micrometers (μm)
  • 10 Angstroms = 1 nanometer
  • 10 billion Angstroms = 1 meter

Special character note: The proper symbol is Å (capital A with a ring above), not simply "A". This distinguishes it from amperes (A) and other uses of the letter A in scientific notation.

Convert Angstroms to Other Units →


Note: The Fathom is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Angstrom belongs to the imperial/US customary system.

History of the Fathom and Angstrom

Ancient Maritime Practices (Pre-9th Century)

Mediterranean and Northern European sailors: Ancient mariners measured rope and depth using body-based units:

  • Cubit: Elbow to fingertip (~18 inches)
  • Pace: Two steps (~5 feet)
  • Arm span: Outstretched arms (~6 feet)

Sounding lead: A heavy weight (lead sinker) attached to a marked line, dropped overboard to measure depth. Sailors counted arm spans as they hauled the line back aboard.

Old English Documentation (9th-11th Centuries)

Earliest references: Anglo-Saxon texts use "fæthm" for measuring rope lengths and describing distances.

Beowulf (8th-11th century): The epic poem mentions "fæthmas" in describing ocean depths and ship measurements.

Viking influence: Old Norse "faðmr" (similar arm-span measurement) influenced English usage through Viking contact and trade.

Medieval Standardization (13th-15th Centuries)

Edward I (1272-1307): English law under Edward I began standardizing measurements, including the fathom at 6 feet.

Admiralty regulations: The emerging Royal Navy needed consistent rope, sail, and depth measurements for shipbuilding and navigation.

Rope making: British rope makers sold cordage by the fathom, with standard lengths for anchor cables (120 fathoms = 1 cable length in some contexts).

Age of Exploration (15th-17th Centuries)

Navigation charts: Early nautical charts (portolan charts) began incorporating depth soundings in fathoms.

Captain James Cook (1768-1779): Cook's Pacific voyages produced meticulous charts with fathom-based depth measurements. His charts became templates for British Admiralty standards.

Example - HMS Endeavour soundings: Cook's logs record depths like "15 fathoms, sandy bottom" or "No bottom at 100 fathoms" (indicating depths exceeding 600 feet).

British Admiralty Charts (19th Century)

Hydrographic Office (founded 1795): The British Admiralty Hydrographic Office systematized global nautical chart production, standardizing fathoms for depth.

Matthew Fontaine Maury (1806-1873): American oceanographer Maury collaborated with the British to create standardized depth charts using fathoms, mapping ocean currents and depths.

Cable-laying expeditions: Transatlantic telegraph cable projects (1850s-1860s) required precise fathom-based depth surveys. HMS Agamemnon and USS Niagara charted the Atlantic floor in fathoms before laying the 1858 cable.

U.S. Navy Adoption (19th-20th Centuries)

Inherited British standards: The U.S. Navy adopted British maritime practices, including fathom-based charts and anchor cable measurements.

U.S. Coast and Geodetic Survey: Founded in 1807 (originally "Survey of the Coast"), it produced nautical charts in fathoms for American waters.

World War II: Submarine warfare and amphibious operations relied heavily on fathom-based depth charts. USS submarines operated in waters charted in fathoms.

Metrication Movement (20th Century-Present)

International Hydrographic Organization (IHO, founded 1921): Recommended global adoption of metric system for nautical charts.

Gradual transition:

  • 1970s-1980s: Most nations began publishing new charts in meters
  • UK Admiralty: Converted most charts to meters by the 1990s
  • U.S. NOAA: Many American charts still use fathoms, particularly for coastal waters

Mixed usage today: Modern electronic chart systems (ECDIS) allow display in either fathoms or meters, accommodating mariners accustomed to either system.

The Angstrom unit is named after the Swedish physicist Anders Jonas Ångström (1814–1874), one of the founders of the science of spectroscopy. Ångström made groundbreaking contributions to understanding electromagnetic radiation and atomic emission spectra.

In 1868, Ångström published a chart of the solar spectrum, expressing the wavelengths of electromagnetic radiation in sunlight as multiples of 10⁻¹⁰ meters. This scale proved extraordinarily convenient for expressing:

  • Atomic radii (typically 0.5-3 Å)
  • Chemical bond lengths (typically 1-2 Å)
  • Wavelengths of X-rays (1-10 Å)
  • Crystal lattice spacings (2-10 Å)

The Angstrom quickly became the standard unit in crystallography, chemistry, and atomic physics throughout the early 20th century. X-ray crystallography, developed by Max von Laue, William Henry Bragg, and William Lawrence Bragg in the 1910s, relied heavily on Angstrom measurements for determining crystal structures.

When the International System of Units (SI) was established in 1960, the Angstrom was officially deprecated in favor of:

  • Nanometer (nm) = 10⁻⁹ m (preferred for 0.1-100 nm scales)
  • Picometer (pm) = 10⁻¹² m (preferred for atomic-scale measurements)

Despite this official change, the Angstrom persists robustly in scientific literature for several reasons:

  • Historical data: Decades of crystallography and spectroscopy literature use Angstroms
  • Convenient scale: Atomic dimensions typically fall in the 0.5-5 Å range—easy to work with
  • Established conventions: Many scientific fields developed their nomenclature around Angstroms
  • Software and databases: Crystallographic databases (PDB, CIF) often default to Angstroms

Today, you will find Angstroms in:

  • Protein Data Bank (PDB) files for biomolecular structures
  • X-ray diffraction data and crystallographic information files (CIF)
  • Chemistry textbooks for bond lengths and atomic radii
  • Materials science publications for thin film thickness and surface studies

Learn More About Scientific Units →


Common Uses and Applications: fathoms vs angstroms

Explore the typical applications for both Fathom (imperial/US) and Angstrom (imperial/US) to understand their common contexts.

Common Uses for fathoms

1. Nautical Charts and Hydrography

Depth soundings: Nautical charts mark depths in fathoms, particularly on U.S. and older British charts.

Contour lines: Lines connecting equal depths (e.g., the 10-fathom line) help mariners avoid shallow areas.

Chart abbreviations:

  • fms: Fathoms
  • fm: Fathom
  • No bottom at 100 fms: Depth exceeds 100 fathoms (600 feet)

2. Anchoring and Mooring

Anchor scope: Mariners calculate how much anchor chain to deploy based on water depth in fathoms.

Rule of thumb: Deploy 5-7 times the water depth in calm conditions, 7-10 times in storms.

Example:

  • Depth: 8 fathoms
  • Calm weather scope (5:1): 40 fathoms of chain
  • Storm scope (10:1): 80 fathoms of chain

3. Commercial Fishing

Net depth: Fishermen describe trawl net depths in fathoms.

Example: "Running trawl at 50 fathoms" (300 feet deep)

Fishing line: Deep-sea fishing lines measured in fathoms to target specific depths.

4. Recreational Boating and Diving

Depth sounders: Many recreational boat depth finders display fathoms (though meters and feet are increasingly common).

Dive planning: Divers reference depth in fathoms on nautical charts when planning dive sites.

5. Submarine Operations

Periscope depth: Submarines traditionally use fathoms for depth control.

Example: "Dive to 20 fathoms" (120 feet)

Historical note: WWII submarine logs recorded depths in fathoms; modern submarines use meters.

6. Maritime Literature and Tradition

Nautical expressions:

  • "To fathom something" = to understand its depth (metaphorically)
  • "Unfathomable" = too deep to measure or comprehend

Sailing instructions: Traditional pilot books use fathoms for approach depths and anchorage recommendations.

When to Use angstroms

1. Crystallography

Crystallographers use Angstroms as the standard unit for crystal structure determination via X-ray, neutron, or electron diffraction. The spacing between atomic planes (d-spacings) in crystals typically ranges from 1-10 Å, making the Angstrom the natural unit. Crystallographic Information Files (CIF) and crystallography software default to Angstrom units.

Convert Crystal Measurements →

2. Atomic and Molecular Physics

Physicists measuring atomic radii, ionic radii, and atomic orbital sizes use Angstroms because typical atomic dimensions fall in the 0.5-5 Å range. Quantum mechanics calculations often output electron densities and orbital sizes in Angstroms for convenient interpretation.

Convert Atomic Scales →

3. Chemistry and Bond Lengths

Chemists specify molecular structures with bond lengths in Angstroms. Chemical databases, molecular modeling software, and computational chemistry programs (like Gaussian, ORCA, and VASP) typically use Angstrom coordinates. This convention allows for easy comparison across decades of chemical literature.

Calculate Molecular Dimensions →

4. Structural Biology

Protein crystallography and cryo-electron microscopy (cryo-EM) express protein structures in Angstroms. The Protein Data Bank (PDB)—the worldwide repository of 3D biological macromolecular structures—uses Angstroms as the standard coordinate unit. Resolutions of protein structures are also reported in Angstroms (e.g., "2.5 Å resolution").

Convert Protein Measurements →

5. X-ray Spectroscopy

X-ray wavelengths naturally fall in the 0.1-100 Å range, making Angstroms the convenient unit for X-ray absorption spectroscopy (XAS), X-ray photoelectron spectroscopy (XPS), and synchrotron radiation experiments. Energy-dispersive X-ray spectroscopy (EDS) also references wavelengths in Angstroms.

Compare X-ray Wavelengths →

6. Thin Film Technology

Materials scientists characterize thin films, coatings, and surface layers in Angstroms, particularly for films thinner than 100 Å (10 nm). Atomic layer deposition (ALD), molecular beam epitaxy (MBE), and physical vapor deposition (PVD) processes often specify thicknesses in Angstroms for precision.

Calculate Film Thickness →

7. Surface Science

Surface scientists studying adsorption, catalysis, and surface reconstruction use Angstroms to measure adsorbate heights, surface step heights (typically 2-4 Å), and interlayer spacings. Scanning tunneling microscopy (STM) and atomic force microscopy (AFM) data are often expressed in Angstroms vertically.

Convert Surface Features →


Additional Unit Information

About Fathom (fath)

How many feet are in a fathom?

Exactly 6 feet = 1 fathom.

This is the defining relationship. The fathom was standardized to 6 feet during medieval English measurement standardization.

How many meters are in a fathom?

1 fathom = 1.8288 meters (exactly).

This conversion uses the international foot definition: 1 foot = 0.3048 meters (exactly).

Calculation: 6 feet × 0.3048 m/ft = 1.8288 m

Is the fathom an SI unit?

No, the fathom is not an SI unit.

It belongs to the imperial and U.S. customary systems. The SI unit of length is the meter.

International usage: The International Hydrographic Organization recommends meters for nautical charts, but fathoms remain legal and common in U.S. and some British waters.

Is the fathom still commonly used today?

Yes, in specific maritime contexts, especially in the United States.

Still common:

  • U.S. NOAA nautical charts (many coastal charts)
  • Recreational boating in the U.S.
  • Commercial fishing fleets
  • Maritime tradition and literature

Declining usage:

  • International shipping (uses meters)
  • Most modern navies (switched to meters)
  • New chart production (increasingly metric)

Result: Fathoms persist in American waters and traditional maritime communities but are gradually being replaced by meters in international contexts.

Where does the word "fathom" come from?

From Old English "fæthm" (outstretched arms, embrace).

Etymology:

  • Proto-Germanic: *faþmaz (embrace, armful)
  • Old English: fæthm (span of outstretched arms)
  • Middle English: fadme, fathme
  • Modern English: fathom

Original meaning: The distance between fingertips when a person extends both arms horizontally—roughly 6 feet for an average man.

Verb form: "To fathom" originally meant "to measure depth with outstretched arms," later metaphorically "to comprehend deeply" (exploring the depths of understanding).

Why are anchor chains measured in shackles, not fathoms?

Both are used, but shackles are standard for large vessels.

Shackle definition: 1 shackle = 15 fathoms = 90 feet = 27.43 meters

Reason: Anchor chains are physically connected with shackle links every 15 fathoms. These physical shackles allow disconnection for maintenance and provide visual/tactile markers when deploying chain.

Usage:

  • Small vessels: Anchor chain length in fathoms
  • Large vessels and navies: Anchor chain length in shackles

Example: "Deploy 5 shackles" = 75 fathoms = 450 feet of chain

How deep is "full fathom five"?

5 fathoms = 30 feet = 9.144 meters.

Shakespeare's The Tempest: Ariel's song describes a drowned man lying at the bottom, 5 fathoms below the surface.

Context: 30 feet is deep enough that:

  • Surface light barely reaches the body
  • Free diving without equipment is challenging
  • The body would be difficult to recover without specialized equipment

This depth creates the eerie, unreachable quality of Ariel's description.

Can I convert my depth sounder from fathoms to meters?

Yes, most modern depth sounders (fishfinders, chartplotters) allow unit selection.

Typical options:

  • Feet
  • Fathoms
  • Meters

How to change (general steps):

  1. Access settings menu
  2. Find "Units" or "Depth Units"
  3. Select preferred unit (fathoms, feet, or meters)
  4. Save settings

Check manual: Specific instructions vary by manufacturer (Garmin, Lowrance, Raymarine, Furuno, etc.).

What's the difference between fathoms and cable lengths?

Both are nautical length units, but they measure different things:

Fathom:

  • 6 feet / 1.8288 meters
  • Primarily for depth measurement

Cable length:

  • UK: 608 feet = 185.3 meters (1/10 nautical mile)
  • US (historical): 720 feet = 219.5 meters (120 fathoms)
  • Primarily for horizontal distance (anchor cable, ship-to-ship spacing)

Confusion: The term "cable" sometimes referred to 100 or 120 fathoms of anchor cable, but the standardized "cable length" unit differs from this.

Do submarines still use fathoms?

Historically yes, but modern submarines use meters.

World War II era: U.S. and British submarines recorded depths in fathoms (e.g., "Dive to 50 fathoms").

Modern practice:

  • U.S. Navy: Switched to feet and meters for submarine operations
  • International: Nearly all modern navies use meters

Reason for change: International standardization, digital instrumentation, and NATO interoperability drove metrication.

About Angstrom (Å)

How many Angstroms are in a meter?

There are 10,000,000,000 (ten billion) Angstroms in one meter (1 m = 10¹⁰ Å). Conversely, 1 Angstrom = 10⁻¹⁰ meters.

To visualize this enormous number: if you lined up 10 billion atoms side by side (each about 1 Å in radius), they would span approximately 1 meter.

Examples:

  • 1 meter = 10,000,000,000 Å
  • 1 millimeter = 10,000,000 Å
  • 1 micrometer = 10,000 Å
  • 1 nanometer = 10 Å

Convert Angstroms to Meters →

How many Angstroms are in a nanometer?

There are exactly 10 Angstroms (Å) in one nanometer (nm). Therefore, 1 Å = 0.1 nm.

This 10:1 ratio makes conversions straightforward:

  • 1 nm = 10 Å
  • 5 nm = 50 Å
  • 0.5 nm = 5 Å
  • 0.15 nm = 1.5 Å

Memory trick: Think "A nanometer is 10 Angstroms" (the number 10 is hidden in "ten").

Convert Angstroms to Nanometers →

Is the Angstrom an SI unit?

No, the Angstrom is not part of the International System of Units (SI). The official SI unit for length at this scale is:

  • Nanometer (nm) = 10⁻⁹ m (for 0.1-1000 nm scales)
  • Picometer (pm) = 10⁻¹² m (for atomic-scale measurements)

Relationship: 1 Å = 0.1 nm = 100 pm

The SI system officially deprecated the Angstrom in 1960, but it remains widely used in crystallography, chemistry, and physics due to historical convention and its convenient scale for atomic dimensions.

Explore SI Length Units →

Why is the Angstrom still used if it is not an SI unit?

The Angstrom persists due to:

1. Historical Convention: Decades of scientific literature (1868-present) use Angstroms. Converting all historical data would be impractical.

2. Convenient Scale: Atomic radii typically range from 0.5-3 Å—easy whole numbers. In nanometers, these become 0.05-0.3 nm (more decimal places).

3. Established Databases: Major scientific databases default to Angstroms:

  • Protein Data Bank (PDB): all coordinates in Angstroms
  • Crystallographic Information Files (CIF): lattice parameters in Angstroms
  • Chemical structure databases: bond lengths in Angstroms

4. Software Defaults: Most crystallography and molecular modeling software uses Angstroms as the default unit.

5. Intuitive Communication: Saying "1.5 Angstroms" is often clearer than "150 picometers" or "0.15 nanometers" in research discussions.

What fields commonly use Angstroms?

The Angstrom remains common in:

Primary fields:

  • Crystallography: X-ray, neutron, and electron diffraction for crystal structure determination
  • Structural Biology: Protein and nucleic acid structure determination (PDB files)
  • Chemistry: Molecular geometry, bond lengths, and computational chemistry
  • Atomic Physics: Atomic radii, orbital sizes, and spectroscopy

Secondary fields:

  • Materials Science: Thin films, surface science, and nanostructures
  • Spectroscopy: X-ray wavelengths and absorption spectra
  • Microscopy: Electron microscopy and scanning probe microscopy
  • Semiconductor Physics: Historical or informal references to feature sizes

Compare Different Scientific Units →

How do you type the Angstrom symbol (Å)?

Typing the proper Angstrom symbol Å varies by platform:

Windows:

  • Hold Alt and type 0197 on numeric keypad: Å
  • Or use Character Map application

Mac:

  • Option + Shift + A: Å

Linux:

  • Compose key + A + A: Å
  • Or Ctrl + Shift + U, then type 00C5, then Enter

HTML/Web:

  • HTML entity: Å → Å
  • Unicode: Å → Å

LaTeX:

  • \AA or \r{A} → Å

Microsoft Word:

  • Insert → Symbol → select Å
  • Or AutoCorrect: type (A) and it may convert automatically

If the symbol is unavailable, write "Angstrom" or abbreviate as "Ang" in informal contexts.

What is the difference between Angstrom and picometer?

An Angstrom (Å) equals 10⁻¹⁰ meters, while a picometer (pm) equals 10⁻¹² meters. This means 1 Angstrom = 100 picometers.

Scale comparison:

  • Angstrom scale: atomic radii, bond lengths (0.5-5 Å = 50-500 pm)
  • Picometer scale: ultra-precise bond length measurements, nuclear radii

Examples:

  • Hydrogen atom radius: 0.53 Å = 53 pm
  • C-H bond length: 1.09 Å = 109 pm
  • C-C single bond: 1.54 Å = 154 pm

Usage differences:

  • Angstroms: Traditional in chemistry and crystallography (though not SI-compliant)
  • Picometers: Official SI unit, required by some journals and standards bodies

Many scientists prefer Angstroms for convenience (whole numbers), while formal SI publications require picometers or nanometers.

Convert Angstroms to Picometers →

How is Angstrom used in protein crystallography?

In protein crystallography, the Angstrom is the standard unit for:

1. Atomic Coordinates: PDB files list x, y, z coordinates of every atom in Angstroms.

2. Resolution: The quality of diffraction data is expressed in Angstroms:

  • High resolution: <1.5 Å (individual atoms clearly visible)
  • Medium resolution: 1.5-3.0 Å (backbone and side chains visible)
  • Low resolution: >3.0 Å (overall fold visible, details limited)

3. Bond Lengths: Standard bond lengths used for structure refinement:

  • C-C: 1.54 Å
  • C-N: 1.47 Å
  • C-O: 1.43 Å

4. Crystal Lattice: Unit cell dimensions (a, b, c axes) are given in Angstroms, typically 50-200 Å.

5. B-factors: Atomic displacement parameters are in Ų (square Angstroms).

Example: "The structure was solved at 2.1 Å resolution with unit cell dimensions a=62.3 Å, b=78.5 Å, c=91.2 Å."

Convert Crystallography Units →

Can I convert Angstroms to inches?

Yes, but it is extremely impractical. Angstroms measure atomic scales, while inches measure everyday objects—a difference of 10 billion!

Conversion: 1 Angstrom = 3.937 × 10⁻⁹ inches (about 0.000000004 inches)

Or inversely: 1 inch = 254,000,000 Å (254 million Angstroms)

Example: A carbon atom with radius 0.77 Å = 0.000000003 inches. This is why scientists use metric units—Angstroms, nanometers, and picometers are far more practical for atomic-scale work.

Convert Angstroms to Practical Units →

Why is it called Angstrom and not Ångström?

The English spelling "Angstrom" is a simplified version of the Swedish name "Ångström" to accommodate keyboards and alphabets without special characters.

Proper Swedish spelling: Anders Jonas Ångström (with the Swedish letter "Å")

Common variations:

  • Angstrom (English, without diacritics)
  • Ångström (Swedish/original spelling)
  • Ångstrom (mixed form)

All refer to the same unit and the same physicist. The symbol Å remains universal across languages, representing both the unit and the first letter of Ångström's name (with the ring above).

In scientific writing, either "Angstrom" or "Ångström" is acceptable, though the simplified "Angstrom" is more common in English-language publications.


Conversion Table: Fathom to Angstrom

Fathom (fath)Angstrom (Å)
0.59,144,000,000
118,288,000,000
1.527,432,000,000
236,576,000,000
591,440,000,000
10182,880,000,000
25457,200,000,000
50914,400,000,000
1001,828,800,000,000
2504,572,000,000,000
5009,144,000,000,000
1,00018,288,000,000,000

People Also Ask

How do I convert Fathom to Angstrom?

To convert Fathom to Angstrom, enter the value in Fathom in the calculator above. The conversion will happen automatically. Use our free online converter for instant and accurate results. You can also visit our length converter page to convert between other units in this category.

Learn more →

What is the conversion factor from Fathom to Angstrom?

The conversion factor depends on the specific relationship between Fathom and Angstrom. You can find the exact conversion formula and factor on this page. Our calculator handles all calculations automatically. See the conversion table above for common values.

Can I convert Angstrom back to Fathom?

Yes! You can easily convert Angstrom back to Fathom by using the swap button (⇌) in the calculator above, or by visiting our Angstrom to Fathom converter page. You can also explore other length conversions on our category page.

Learn more →

What are common uses for Fathom and Angstrom?

Fathom and Angstrom are both standard units used in length measurements. They are commonly used in various applications including engineering, construction, cooking, and scientific research. Browse our length converter for more conversion options.

For more length conversion questions, visit our FAQ page or explore our conversion guides.

All Length Conversions

Meter to KilometerMeter to HectometerMeter to DecimeterMeter to CentimeterMeter to MillimeterMeter to InchMeter to FootMeter to YardMeter to MileMeter to Nautical MileMeter to MicrometerMeter to NanometerMeter to Light YearMeter to Astronomical UnitMeter to ParsecMeter to AngstromMeter to Point (Typography)Meter to Mil/ThouMeter to FathomMeter to FurlongMeter to Link (Gunter's)Meter to PaceMeter to SpanMeter to DigitMeter to Cable LengthMeter to EllMeter to FingerMeter to Roman MileMeter to StadionMeter to Chi (Chinese)Meter to Shaku (Japanese)Meter to Li (Chinese)Meter to ToiseMeter to BoltMeter to RopeMeter to SmootMeter to SajeneMeter to KenMeter to WaMeter to VaraMeter to AlnMeter to Cubit (Royal/Egyptian)Meter to VerstaMeter to ArpentMeter to Ri (Japanese)Meter to KlafterMeter to YojanaMeter to SkeinKilometer to MeterKilometer to HectometerKilometer to DecimeterKilometer to CentimeterKilometer to MillimeterKilometer to InchKilometer to FootKilometer to YardKilometer to MileKilometer to Nautical MileKilometer to MicrometerKilometer to NanometerKilometer to Light YearKilometer to Astronomical UnitKilometer to ParsecKilometer to AngstromKilometer to Point (Typography)Kilometer to Mil/ThouKilometer to FathomKilometer to FurlongKilometer to Link (Gunter's)Kilometer to PaceKilometer to SpanKilometer to DigitKilometer to Cable LengthKilometer to EllKilometer to FingerKilometer to Roman MileKilometer to StadionKilometer to Chi (Chinese)Kilometer to Shaku (Japanese)Kilometer to Li (Chinese)Kilometer to ToiseKilometer to BoltKilometer to RopeKilometer to SmootKilometer to SajeneKilometer to KenKilometer to WaKilometer to VaraKilometer to AlnKilometer to Cubit (Royal/Egyptian)Kilometer to VerstaKilometer to ArpentKilometer to Ri (Japanese)Kilometer to KlafterKilometer to YojanaKilometer to SkeinHectometer to MeterHectometer to KilometerHectometer to DecimeterHectometer to CentimeterHectometer to MillimeterHectometer to InchHectometer to FootHectometer to YardHectometer to MileHectometer to Nautical MileHectometer to MicrometerHectometer to NanometerHectometer to Light YearHectometer to Astronomical UnitHectometer to ParsecHectometer to AngstromHectometer to Point (Typography)Hectometer to Mil/ThouHectometer to FathomHectometer to FurlongHectometer to Link (Gunter's)Hectometer to PaceHectometer to SpanHectometer to Digit

Verified Against Authority Standards

All conversion formulas have been verified against international standards and authoritative sources to ensure maximum accuracy and reliability.

NIST Guide for the Use of SI

National Institute of Standards and TechnologyOfficial US standards for length measurements

SI Brochure

Bureau International des Poids et MesuresInternational System of Units official documentation

Last verified: February 19, 2026