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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

inch1 in2 in3 in4 in5 in6 in7 in8 in9 in10 in11 in12 in13 in14 in15 in16 in17 in18 in19 in20 in21 in22 in23 in24 in25 in26 in27 in28 in29 in30 in31 in32 in33 in34 in35 in36 in37 in38 in39 in40 in41 in42 in43 in44 in45 in46 in47 in48 in49 in50 in51 in52 in53 in54 in55 in56 in57 in58 in59 in60 in61 in62 in63 in64 in65 in66 in67 in68 in69 in70 in71 in72 in73 in74 in75 in76 in77 in78 in79 in80 in81 in82 in83 in84 in85 in86 in87 in88 in89 in90 in91 in92 in93 in94 in95 in96 in97 in98 in99 in100 in
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