Inches to Millimeters

Convert Inches to Millimeters instantly. Free online length converter with conversion table and formula.

1 Inches = 25.4 Millimeters
Formula: 1 Inches = 25.4 Millimeters
InchesMillimeters
125.40
5127
10254
25635
501,270
1002,540
2506,350
50012,700
1,00025,400

Length Conversion FAQ

How do I convert inches to millimeters?

Multiply the value in inches by 25.4. For example, 10 inches = 254 millimeters.

What is 1 inches in millimeters?

1 inches equals 25.4 millimeters.

How do I convert millimeters back to inches?

Divide the value in millimeters by 25.4, or multiply by 0.0393701.