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Inches to Millimeters Converter

Convert inches to millimeters instantly with our precise calculator

in
mm
in mm
Enter a value to see the conversion

How to Use Our inches to millimeters Converter?

1

Enter inches

Input your measurement in inches

2

Instant Conversion

Get immediate results in millimeters

3

Use Results

Apply conversions to your projects

Common Inches to Millimeters Conversions

Popular conversion values for quick reference

1 in
=
25.4 mm
5 in
=
127 mm
10 in
=
254 mm
25 in
=
635 mm
50 in
=
1,270 mm
100 in
=
2,540 mm

Conversion Formula

1 in = 25.4 mm

To convert inches to millimeters, multiply by 25.4

Inches to Millimeters Table

Quick reference conversion table

Inches (in)
Millimeters (mm)
1 in
25.4 mm
2 in
50.8 mm
3 in
76.2 mm
4 in
101.6 mm
5 in
127.0 mm
6 in
152.4 mm
7 in
177.8 mm
8 in
203.2 mm
9 in
228.6 mm
10 in
254.0 mm
11 in
279.4 mm
12 in
304.8 mm
13 in
330.2 mm
14 in
355.6 mm
15 in
381.0 mm
16 in
406.4 mm
17 in
431.8 mm
18 in
457.2 mm
19 in
482.6 mm
20 in
508.0 mm

Inches Related Conversions

Frequently Asked Questions

How do I convert inches to millimeters?

To convert inches to millimeters, simply enter the value in our calculator above. The conversion is done automatically using the precise conversion factor.

What is the conversion factor from inches to millimeters?

The conversion relationship between inches and millimeters is calculated using internationally recognized standards for maximum accuracy.

Is this inches to millimeters converter free to use?

Yes! Our converter is completely free with no registration required. You can perform unlimited conversions without any restrictions.