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Convert Millimeters to Inches

Convert millimeters to inches instantly. Free, accurate, with a reference table and the exact formula (1 in = 25.4 mm).

1 mm = 0.03937007874 in

Common length conversions

  • 1 m = 3.280839895 ft
  • 1 km = 0.6213711922 mi
  • 1 cm = 0.3937007874 in
  • 1 in = 2.54 cm
  • 1 mi = 1.609344 km
  • 1 ft = 0.3048 m

Formula

inches = mm ÷ 25.4

Built-in to the calculator above — no need to do the math by hand.

Millimeters to Inches table

mmin
1 mm0.03937007874 in
2 mm0.07874015748 in
3 mm0.1181102362 in
5 mm0.1968503937 in
10 mm0.3937007874 in
25 mm0.9842519685 in
50 mm1.968503937 in
100 mm3.937007874 in
250 mm9.842519685 in
500 mm19.68503937 in
1000 mm39.37007874 in

Frequently asked questions

Related conversions

Inches → Millimeters

in to mm

Centimeters → Inches

cm to in

Meters → Feet

m to ft