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1 inches = 25.4 millimeters 

Inches to Millimeters Conversion

Inch to millimeter conversion allow you make a conversion between inch and millimeter easily. You can find the tool in the following.

Length Conversion

to

input
= 25.40000000
= 0.254 × 102
= 0.254E2
= 0.254e2
converter  table
= 38.10000000
= 0.381 × 102
= 0.381E2
= 0.381e2
converter  table
= 50.80000000
= 0.508 × 102
= 0.508E2
= 0.508e2
converter  table
= 63.50000000
= 0.635 × 102
= 0.635E2
= 0.635e2
converter  table
= 76.20000000
= 0.762 × 102
= 0.762E2
= 0.762e2
converter  table

Quick Look: inches to millimeters

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millimeter25.4 mm50.8 mm76.2 mm101.6 mm127 mm152.4 mm177.8 mm203.2 mm228.6 mm254 mm279.4 mm304.8 mm330.2 mm355.6 mm381 mm406.4 mm431.8 mm457.2 mm482.6 mm508 mm533.4 mm558.8 mm584.2 mm609.6 mm635 mm660.4 mm685.8 mm711.2 mm736.6 mm762 mm787.4 mm812.8 mm838.2 mm863.6 mm889 mm914.4 mm939.8 mm965.2 mm990.6 mm1 016 mm1,041.4 mm1,066.8 mm1,092.2 mm1,117.6 mm1 143 mm1,168.4 mm1,193.8 mm1,219.2 mm1,244.6 mm1 270 mm1,295.4 mm1,320.8 mm1,346.2 mm1,371.6 mm1 397 mm1,422.4 mm1,447.8 mm1,473.2 mm1,498.6 mm1 524 mm1,549.4 mm1,574.8 mm1,600.2 mm1,625.6 mm1 651 mm1,676.4 mm1,701.8 mm1,727.2 mm1,752.6 mm1 778 mm1,803.4 mm1,828.8 mm1,854.2 mm1,879.6 mm1 905 mm1,930.4 mm1,955.8 mm1,981.2 mm2,006.6 mm2 032 mm2,057.4 mm2,082.8 mm2,108.2 mm2,133.6 mm2 159 mm2,184.4 mm2,209.8 mm2,235.2 mm2,260.6 mm2 286 mm2,311.4 mm2,336.8 mm2,362.2 mm2,387.6 mm2 413 mm2,438.4 mm2,463.8 mm2,489.2 mm2,514.6 mm2 540 mm

The inch (abbreviation: in or ″) is a unit of length in the (British) imperial and United States customary systems of measurement now formally equal to  1⁄36 yard but usually understood as  1⁄12 of a foot. Derived from the Roman uncia ("twelfth"), inch is also sometimes used to translate related units in other measurement systems, usually understood as deriving from the width of the human thumb.

Name of unitSymbolDefinitionRelation to SI unitsUnit System
inchin

≡ 2.54 cm ≡  1⁄36 yd ≡  1⁄12 ft

≡ 0.0254 m

Imperial/US
Inches Conversion

conversion table

inchesmillimetersinchesmillimeters
1≡ 25.44≡ 101.6
1.5≡ 38.14.5≡ 114.3
2≡ 50.85≡ 127
2.5≡ 63.55.5≡ 139.7
3≡ 76.26≡ 152.4
Inches to Millimeters Conversion Table

The millimetre (International spelling as used by the International Bureau of Weights and Measures; SI unit symbol mm) or millimeter (American spelling) is a unit of length in the metric system, equal to one thousandth of a metre, which is the SI base unit of length. Therefore there are thousand millimetres in a metre. There are ten millimetres in a centimetre.

Name of unitSymbolDefinitionRelation to SI unitsUnit System
millimetermm

≡ 1×10-3 m ≡ 0.001 m

≡ 1×10-3 m ≡ 0.001 m

Metric system SI
Millimeters Conversion

conversion table

millimetersinchesmillimetersinches
1≡ 0.0393700787401574≡ 0.15748031496063
1.5≡ 0.0590551181102364.5≡ 0.17716535433071
2≡ 0.0787401574803155≡ 0.19685039370079
2.5≡ 0.0984251968503945.5≡ 0.21653543307087
3≡ 0.118110236220476≡ 0.23622047244094
Millimeters to Inches Conversion Table

Conversion table

inchesmillimeters
1≡ 25.4
0.0393701≡ 1
Inches to Millimeters Conversion Table

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Conversion in other languages

You can find the conversion in other languages in the following:

Legend

SymbolDefinition
≡exactly equal
≈approximately equal to
=equal to
digitsindicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …)
  4. Inches to Millimeters