Use this free online calculator to convert Twain to Mil instantly. This all length conversions conversion tool provides accurate results for all your measurement needs.

Quick Reference

1 Twain = 144000.29 Mil

1 Mil = 6.944e-6 Twain

Twain to Mil Conversion Formula

To convert Twain to Mil, multiply by 144000.29.

Mil = Twain × 144000.29

Twain = Mil × 6.944e-6

To convert Mil back to Twain, divide by 144000.29 (or multiply by 6.944e-6).

About These Units

About Twain

The twain is an old word for the number two, derived from the Anglo-Saxon twegen. The American author Samuel Clemens (1835-1910), who had been a riverboat pilot on the Mississippi in his youth, took his literary name from a traditional riverboat phrase "mark twain", meaning "exactly two" fathoms of water. This was the minimum depth needed for the boats to operate safely without running aground.

About Mil

The mil is a unit of distance equal to 0.001 inch: a "milli-inch," in other words. Mils are used, primarily in the U.S., to express small distances and tolerances in engineering work. One mil is exactly 25.4 microns, just as one inch is exactly 25.4 millimeters. This unit is also called the thou. With the increasing use of metric units in the U.S., many machinists now avoid the use of "mil" because that term is also a handy slang for the millimeter.

Twain to Mil Conversion Table

Twain	Mil	Mil	Twain
0.1	14400.03	0.1	6.944e-7
0.5	72000.15	0.5	3.472e-6
1	144000.29	1	6.944e-6
2	288000.58	2	1.389e-5
5	720001.46	5	3.472e-5
10	1440002.91	10	6.944e-5
20	2880005.83	20	1.389e-4
25	3600007.28	25	1.736e-4
50	7200014.57	50	3.472e-4
100	14400029.13	100	6.944e-4
250	36000072.83	250	1.736e-3
500	72000145.67	500	3.472e-3
1000	144000291.34	1000	6.944e-3

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