Pace to Span Conversion Calculator: Free Online Tool
Convert paces to spans with our free online length converter.
Pace to Span Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Pace).
- The converted value in Span will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Length category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Pace to Span
Converting Pace to Span involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Pace = 3.333333 spansExample Calculation:
Convert 10 paces: 10 × 3.333333 = 33.33333 spans
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 Pace and a Span?
The Pace is a unit of length based on the distance covered by a human step. Its definition is highly variable and depends heavily on context, often referring to either a single step or a double step.
- Single Step Pace: Often informally estimated as the distance from the heel of one foot to the heel of the next foot in a normal walking stride. Common estimations range from 2.5 to 3 feet (ft) or approximately 0.75 to 0.9 meters (m). This is sometimes simply called a 'step' or 'stride'.
- Double Step Pace (Roman Pace): Historically, the most significant definition was the Roman passus, which measured the distance from the heel of one foot to the point where the same foot touches the ground again (i.e., two steps). This was standardized as 5 Roman feet, roughly 1.48 meters or 4.86 feet.
Due to its inherent variability and dependence on individual gait and terrain, the pace is not a standardized unit for precise measurement.
The Span is an ancient unit of length based on the distance across an outstretched human hand, measured from the tip of the thumb to the tip of the little finger (or sometimes the index finger). As an anthropomorphic unit, its length was inherently variable, depending on the size of an individual's hand.
Historically, it was often defined in relation to other body-based units:
- Typically considered half a cubit.
- Often equated to 3 palms (where a palm is the width of the hand across the base of the fingers).
- Sometimes defined as 12 digits (fingerbreadths).
A common, though unofficial, modern estimate for a span is around 9 inches or approximately 22.86 centimeters (cm).
Note: The Pace is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Span belongs to the imperial/US customary system.
History of the Pace and Span
The pace is one of the most ancient and intuitive units of length, used across numerous cultures due to its direct link to human locomotion.
- Ancient Rome: The Romans formalized the passus (double step) as 5 pedes (Roman feet). This unit was fundamental to their system, with 1000 passus forming the Roman mile (mille passus), which heavily influenced the definition of the mile in later systems.
- Military Usage: Throughout history, armies used paces (both single and double) for marching cadence, estimating distances, and measuring fortifications or camp layouts. Standardized step lengths were often drilled.
- Informal Measurement: Before widespread standardized rulers and tapes, pacing was a common way for individuals to estimate lengths and distances for land, construction, or travel.
The pace gradually fell out of official use with the rise of standardized systems like the Imperial system (feet, yards) and the Metric system (meters), which offered greater precision and consistency.
The span is one of the oldest informal units of measurement, used by numerous ancient civilizations, including the Egyptians, Israelites, Greeks, and Romans, due to the convenience of using the human hand.
- Ancient Egypt & Mesopotamia: The span was used alongside the cubit and digit. The relationship (often 1 span = 1/2 cubit) was fundamental in their systems.
- Biblical References: The span is mentioned in the Bible (e.g., Exodus 28:16 describing the High Priest's breastplate, Goliath's height in some interpretations).
- Ancient Greece & Rome: Used as a practical subdivision of the cubit.
- Medieval Europe: Continued in informal use and sometimes appeared in texts defining lengths. In England, it was often standardized (unofficially) as 9 inches.
Like other anthropomorphic units, the span fell out of official use with the development and adoption of more standardized systems like the Imperial (inches, feet) and Metric (meters) systems, which provided necessary precision for trade, science, and industry.
Common Uses for paces and spans
Explore the typical applications for both Pace (imperial/US) and Span (imperial/US) to understand their common contexts.
Common Uses for paces
While obsolete for official measurements, the pace still finds some use:
- Rough Estimation: Used informally to get a quick approximation of distances, such as the length of a room, a garden plot, or walking distances in hiking or orienteering.
- Military & Marching Bands: Concepts related to pace length and cadence remain relevant in drilling and formation marching.
- Historical Context: Understanding the pace (especially the Roman passus) is crucial for interpreting historical texts, military accounts, and measurements related to ancient structures or distances.
- Exercise & Fitness: Step counters (pedometers) measure activity in terms of steps, which are essentially single paces.
Common Uses for spans
The span is now obsolete for precise or official measurements but is still encountered or used in specific contexts:
- Informal Estimation: Used for quick, rough measurements of moderate lengths where precision is not critical (e.g., gardening, crafts, estimating object sizes).
- Historical Texts: Found in ancient and medieval documents, requiring understanding for interpretation.
- Anthropology & Archaeology: Relevant when studying historical measurement systems or interpreting dimensions from ancient sites.
- Figurative Language: Can be used metaphorically to denote a small distance or extent ("life span").
- Understanding Historical Units: Key to grasping the relationship between units like the digit, palm, and cubit in ancient systems.
Frequently Asked Questions
Questions About Pace (pace)
How long is a pace?
There is no single standard length for a "pace".
- An informal single step pace is often estimated at 2.5 to 3 feet (0.75 to 0.9 meters).
- The historical Roman pace (passus) was a double step, standardized at 5 Roman feet (approx. 1.48 meters or 4.86 feet). Always clarify which definition is being used.
What is the difference between a pace and a Roman pace?
A "pace" is ambiguous. It can mean a single step (variable length, ~2.5-3 ft) or a double step. The Roman pace (passus) specifically refers to the double step standardized at 5 Roman feet (~1.48 m).
What is the difference between a pace and a step or stride?
Often, "step" or "stride" refers to the distance covered by a single movement of one foot forward (heel-to-heel or toe-to-toe). "Pace" can mean this, but it can also refer to the Roman double step (passus). The ambiguity makes "step" or "stride" slightly clearer when referring to a single foot movement.
How many paces are in a mile?
This depends on the definition of "pace":
- Using the Roman pace (passus): The Roman mile (mille passus) was defined as 1000 paces (double steps).
- Using an informal single step pace: If we estimate a single step pace at 2.5 feet, a statute mile (5280 feet) would contain 5280 / 2.5 = 2112 single paces. If estimated at 3 feet, it would be 5280 / 3 = 1760 single paces. This is highly approximate.
Is the pace an SI unit?
No, the pace is not an SI unit. It is an ancient, non-standardized, anthropomorphic unit. The SI unit for length is the meter (m).
Is the pace still used today?
The pace is not used for any official, scientific, or trade measurements today due to its lack of standardization. Its use is confined to informal distance estimation, historical study, and contexts like military drilling or fitness tracking (as steps).
About Span (span)
How long is a span?
There is no single, universally fixed length for a span because it's based on human hand size. However:
- A common historical and modern estimate is 9 inches (in).
- This is approximately 22.86 centimeters (cm) or 0.2286 meters (m).
- Historically, it was often defined as half a cubit, which varied (e.g., a common cubit of ~18 inches would yield a 9-inch span).
What is the relationship between a span and a cubit?
In many historical systems, a span was considered half (1/2) of a cubit. Since cubits themselves varied (e.g., common cubit vs. royal cubit), the exact length of the span derived this way also varied.
What is the relationship between a span and a palm or digit?
Common relationships, though varying by system, were:
- 1 span ≈ 3 palms (where a palm is the width of the hand).
- 1 span ≈ 12 digits (where a digit is the width of a finger).
Is the span an SI unit?
No, the span is not an SI unit. It is an ancient, non-standardized, anthropomorphic unit. The SI base unit for length is the meter (m).
Is the span still used today?
The span is not used for any official, scientific, or commercial measurements. Its use is limited to informal estimations, historical context, and figurative language. People might still use their own hand span for a quick size check.
Where does the name 'span' come from?
The word "span" comes from Old English spann, related to the verb spannan, meaning "to stretch, extend, or connect". This directly reflects the action of stretching the hand to measure the unit.
Conversion Table: Pace to Span
| Pace (pace) | Span (span) |
|---|---|
| 1 | 3.333 |
| 5 | 16.667 |
| 10 | 33.333 |
| 25 | 83.333 |
| 50 | 166.667 |
| 100 | 333.333 |
| 500 | 1,666.667 |
| 1,000 | 3,333.333 |
All Length Conversions
Other Units from Length
- Meter (m)
- Kilometer (km)
- Hectometer (hm)
- Decimeter (dm)
- Centimeter (cm)
- Millimeter (mm)
- Inch (in)
- Foot (ft)
- Yard (yd)
- Mile (mi)
- Nautical Mile (NM)
- Micrometer (μm)
- Nanometer (nm)
- Light Year (ly)
- Astronomical Unit (AU)
- Parsec (pc)
- Angstrom (Å)
- Point (Typography) (pt)
- Mil/Thou (mil)
- Fathom (fath)
- Furlong (fur)
- Link (Gunter's) (li)
- Digit (digit)
- Cable Length (cb)
- Ell (ell)
- Finger (finger)
- Roman Mile (m.p.)
- Stadion (stadion)
- Chi (Chinese) (chi)
- Shaku (Japanese) (shaku)
- Li (Chinese) (li)
- Toise (toise)
- Bolt (bolt)
- Rope (rope)
- Smoot (smoot)
- Sajene (sajene)
- Ken (ken)
- Wa (wa)
- Vara (vara)
- Aln (aln)
- Cubit (Royal/Egyptian) (cubit)
- Versta (versta)
- Arpent (arpent)
- Ri (Japanese) (ri)
- Klafter (klafter)
- Yojana (yojana)
- Skein (skein)