Thou (Mils) to Miles (th → mi)
Formula
1 th = 1.5782828282828283e-8 miConversion Table
| th | mi |
|---|---|
| 0 | 0 |
| 1.0000 | 0.000000015783 |
| 2.0000 | 0.000000031566 |
| 3.0000 | 0.000000047348 |
| 4.0000 | 0.000000063131 |
| 5.0000 | 0.000000078914 |
| 6.0000 | 0.000000094697 |
| 7.0000 | 0.00000011048 |
| 8.0000 | 0.00000012626 |
| 9.0000 | 0.00000014205 |
| 10.000 | 0.00000015783 |
| 11.000 | 0.00000017361 |
| 12.000 | 0.00000018939 |
| 13.000 | 0.00000020518 |
| 14.000 | 0.00000022096 |
| 15.000 | 0.00000023674 |
| 16.000 | 0.00000025253 |
| 17.000 | 0.00000026831 |
| 18.000 | 0.00000028409 |
| 19.000 | 0.00000029987 |
| th | mi |
|---|---|
| 20.000 | 0.00000031566 |
| 21.000 | 0.00000033144 |
| 22.000 | 0.00000034722 |
| 23.000 | 0.00000036301 |
| 24.000 | 0.00000037879 |
| 25.000 | 0.00000039457 |
| 26.000 | 0.00000041035 |
| 27.000 | 0.00000042614 |
| 28.000 | 0.00000044192 |
| 29.000 | 0.00000045770 |
| 30.000 | 0.00000047348 |
| 31.000 | 0.00000048927 |
| 32.000 | 0.00000050505 |
| 33.000 | 0.00000052083 |
| 34.000 | 0.00000053662 |
| 35.000 | 0.00000055240 |
| 36.000 | 0.00000056818 |
| 37.000 | 0.00000058396 |
| 38.000 | 0.00000059975 |
| 39.000 | 0.00000061553 |
| th | mi |
|---|---|
| 40.000 | 0.00000063131 |
| 41.000 | 0.00000064710 |
| 42.000 | 0.00000066288 |
| 43.000 | 0.00000067866 |
| 44.000 | 0.00000069444 |
| 45.000 | 0.00000071023 |
| 46.000 | 0.00000072601 |
| 47.000 | 0.00000074179 |
| 48.000 | 0.00000075758 |
| 49.000 | 0.00000077336 |
| 50.000 | 0.00000078914 |
| 51.000 | 0.00000080492 |
| 52.000 | 0.00000082071 |
| 53.000 | 0.00000083649 |
| 54.000 | 0.00000085227 |
| 55.000 | 0.00000086806 |
| 56.000 | 0.00000088384 |
| 57.000 | 0.00000089962 |
| 58.000 | 0.00000091540 |
| 59.000 | 0.00000093119 |
| th | mi |
|---|---|
| 60.000 | 0.00000094697 |
| 61.000 | 0.00000096275 |
| 62.000 | 0.00000097854 |
| 63.000 | 0.00000099432 |
| 64.000 | 0.0000010101 |
| 65.000 | 0.0000010259 |
| 66.000 | 0.0000010417 |
| 67.000 | 0.0000010574 |
| 68.000 | 0.0000010732 |
| 69.000 | 0.0000010890 |
| 70.000 | 0.0000011048 |
| 71.000 | 0.0000011206 |
| 72.000 | 0.0000011364 |
| 73.000 | 0.0000011521 |
| 74.000 | 0.0000011679 |
| 75.000 | 0.0000011837 |
| 76.000 | 0.0000011995 |
| 77.000 | 0.0000012153 |
| 78.000 | 0.0000012311 |
| 79.000 | 0.0000012468 |
Thou (Mils) to Miles Conversion
Converting Thou (Mils) (th) to Miles (mi) is a common length conversion. 1 th equals 0 mi. For example, 100 th is equal to 0.000002 mi.
Quick Mental Math: Thou (Mils) to Miles
Reference a linear anchor between thou and miles; use one memorable value.
Why is converting Thou (Mils) to Miles tricky?
Magnitude or direction confusion between thou and miles is the primary error source.
Quick Reference Values
1 th = 0 mi. 5 th = 0 mi. 10 th = 0 mi. 25 th = 0 mi. 50 th = 0.000001 mi. 100 th = 0.000002 mi.
What is Thou (Mils)?
Thou (Mils) (th) is a unit of length. A thou is a unit of length equal to one thousandth of an inch (0.001 in). It corresponds to exactly 25.4 micrometers (µm) in SI units. The thou is widely used in engineering and manufacturing for precise measurements of thickness and diameter [nist-si-guide]. The thou emerged in the 19th century in British engineering as a convenient subdivision of the inch. Its use was formalized to provide accuracy in machining and toolmaking, reflecting industrial measurement needs [nist-si-guide]. The thou remains common in the United States, Canada, and the UK for mechanical engineering and machining tolerances. It is frequently used in the automotive and aerospace industries for component specifications [nist-si-guide].
What is Miles?
Miles (mi) is a unit of length. The mile is a unit of length equal to exactly 1,609.344 meters. It is defined internationally based on the statute mile standard agreed upon by the United States and countries using Imperial units [bipm-si-brochure]. The mile is used primarily for measuring distances on land and in navigation. The mile traces back to Roman times, originally defined as 1,000 paces. The modern statute mile was standardized in 1593 by an English Act of Parliament and internationally fixed in 1959 to 1,609.344 meters to unify measurements [bipm-si-brochure]. Miles remain official units of length in the United States, United Kingdom, and some Caribbean countries. It is commonly used in road distances, aviation, and maritime navigation, despite the global trend toward metric units [nist-sp-811].
Common Misspellings
People often search for this conversion using these alternate spellings: thow, thouh, thous, mile, mileses, miels, mil. All of these refer to the Thou (Mils) to Miles conversion.