Metric to Inches

Conversion

Convert millimetres or centimetres to inches.

Formula

inches = mm ÷ 25.4 (or cm ÷ 2.54)
  • 1 mm = 0.039370 in; 1 cm = 0.393701 in.

Metric to Inches Example

Inputs
  • Value: 25.4
  • Unit: mm

25.4 mm ÷ 25.4 = 1.0000 in

Frequently asked questions

How do I use the Metric to Inches?
Enter the value in the input field and the result updates immediately.
How accurate is this converter?
Uses internationally recognised conversion factors. Results are rounded to the displayed decimal places.
Can I verify this manually?
Yes — apply the formula shown above step by step.