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

Quick Reference

1 Thou = 0.025400 Millimeter

1 Millimeter = 39.3701 Thou

Thou to Millimeter Conversion Formula

To convert Thou to Millimeter, multiply by 0.025400.

Millimeter = Thou × 0.025400

Thou = Millimeter × 39.3701

To convert Millimeter back to Thou, divide by 0.025400 (or multiply by 39.3701).

About These Units

About Thou

An inch is an Imperial unit of length. Sweden also briefly had a "decimal inch" based on the metric system: see below for more.

About Millimeter

1 millimetre = SI unitsrn1×10-3 m 0.1 cm The millimetre (American spelling: millimeter, symbol mm) is a unit of length in the metric system, equal to one thousandth of a metre, which is the current SI base unit of length.

Thou to Millimeter Conversion Table

Thou	Millimeter	Millimeter	Thou
0.1	2.540e-3	0.1	3.9370
0.5	0.012700	0.5	19.6850
1	0.025400	1	39.3701
2	0.050800	2	78.7402
5	0.127000	5	196.8504
10	0.254000	10	393.7008
20	0.508000	20	787.4016
25	0.635000	25	984.2520
50	1.2700	50	1968.50
100	2.5400	100	3937.01
250	6.3500	250	9842.52
500	12.7000	500	19685.04
1000	25.4000	1000	39370.08

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