Astronomical Unit to Mil/Thou Conversion Calculator: Free Online Tool
Convert astronomical units to mils with our free online length converter.
Astronomical Unit to Mil/Thou Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Astronomical Unit).
- The converted value in Mil/Thou 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 Astronomical Unit to Mil/Thou
Converting Astronomical Unit to Mil/Thou involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Astronomical Unit = 5.8898e+15 milsExample Calculation:
Convert 10 astronomical units: 10 × 5.8898e+15 = 5.8898e+16 mils
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 Astronomical Unit and a Mil/Thou?
An astronomical unit is a unit of length roughly equal to the average distance between Earth and the Sun. It is defined as exactly 149,597,870,700 meters.
A mil (also known as a thou) is a unit of length equal to one thousandth of an inch (0.001 inches or 25.4 micrometers).
Note: The Astronomical Unit is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Mil/Thou belongs to the imperial/US customary system.
History of the Astronomical Unit and Mil/Thou
Historically used to measure distances within the Solar System, its value was refined over centuries through astronomical observations. The exact definition was adopted by the IAU in 2012.
The unit originates from precision engineering and manufacturing where small tolerances are critical.
Common Uses for astronomical units and mils
Explore the typical applications for both Astronomical Unit (imperial/US) and Mil/Thou (imperial/US) to understand their common contexts.
Common Uses for astronomical units
- Measuring distances within the Solar System (e.g., planet orbits)
- Expressing distances to near-Earth objects
Common Uses for mils
- Measuring thickness of materials (e.g., paper, plastic film, coatings)
- Specifying manufacturing tolerances
- Electronics (e.g., PCB trace widths)
Frequently Asked Questions
Questions About Astronomical Unit (AU)
Why use Astronomical Units instead of kilometers or miles?
Astronomical Units (AU) provide a more convenient scale for the vast distances within our solar system. Expressing interplanetary distances in km or miles results in extremely large and unwieldy numbers.
How many kilometers/miles is 1 AU?
1 Astronomical Unit (AU) is approximately 149.6 million kilometers or 93 million miles.
How long does it take light to travel 1 AU?
It takes sunlight approximately 8 minutes and 20 seconds to travel the distance of one Astronomical Unit from the Sun to the Earth.
About Mil/Thou (mil)
Is a mil the same as a millimeter?
No, a mil (0.001 inches) is much smaller than a millimeter (0.001 meters). 1 millimeter is approximately 39.37 mils.
Is 'mil' short for millimeter?
No, 'mil' is short for the Latin 'mille', meaning thousandth (of an inch). It is not an abbreviation for millimeter (mm).
What does 'thou' mean in this context?
'Thou' is another common name for a mil, also meaning one thousandth (of an inch). It is frequently used in engineering and machining.
Conversion Table: Astronomical Unit to Mil/Thou
| Astronomical Unit (AU) | Mil/Thou (mil) |
|---|---|
| 1 | 5,889,763,779,527,559 |
| 5 | 29,448,818,897,637,796 |
| 10 | 58,897,637,795,275,590 |
| 25 | 147,244,094,488,188,960 |
| 50 | 294,488,188,976,377,900 |
| 100 | 588,976,377,952,755,800 |
| 500 | 2,944,881,889,763,779,600 |
| 1,000 | 5,889,763,779,527,559,000 |
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)
- Parsec (pc)
- Angstrom (Å)
- Point (Typography) (pt)
- Fathom (fath)
- Furlong (fur)
- Link (Gunter's) (li)
- Pace (pace)
- Span (span)
- 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)