Convert Inches to Millimeters
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Convert Inches to Millimeters (in to mm) with our conversion calculator and conversion tables. To convert in to mm use direct conversion formula below.
in = 25.4 mm.
You also can convert Inches to other length units.
1
INCHES
=
25.4
MILLIMETERS
Use this formula to convert manually without calculator: 1 Inches / 25.4 = 1 Millimeters
Conversion table: Inches to Millimeters
IN
to
MM
1  =  25.4 
2  =  50.8 
3  =  76.2 
4  =  101.6 
5  =  127 
7  =  177.8 
8  =  203.2 
9  =  228.6 
10  =  254 
MILLIMETERS
to
INCHES
1  =  0.039370078740157 
2  =  0.078740157480315 
3  =  0.11811023622047 
4  =  0.15748031496063 
5  =  0.19685039370079 
7  =  0.2755905511811 
8  =  0.31496062992126 
9  =  0.35433070866142 
10  =  0.39370078740157 
Closest numbers to 1 Inches
INCHES
to
MILLIMETERS
Calculator
1 Inches to other length units:

Millimeters
25.4

Centimeter
2.54

Decimeters
0.254

Foots
0.083333333333333

Yards
0.027777777777778

Meters
0.0254

Kilometers
2.54E5

Miles
1.5786202610317E5

Nautical miles
1.3714902807775E5