How many cm is 10 mm?

10 mm = 1.0 cm. Use this conversion factor for your calculations.

What's the exact conversion factor for millimeter to centimeter?

1 mm = 0.1 cm. This factor is based on the international standard meter definition.

Why would I need to convert millimeter to centimeter?

Different countries and industries use different measurement systems. This conversion bridges systems used globally.

Can I use quick mental math for millimeter to centimeter conversion?

For precision, use a calculator. But you can multiply millimeter by 0.1 for rough estimates.

Millimeter to Centimeter Converter

Enter a value to instantly convert between length units.

From

Precision4 dp

1 Millimeter = 0.1 Centimeter

Key Formulas

Centimeter → Inch

in = cm × 0.393701

Kilometer → Mile

mi = km × 0.621371

Foot → Meter

m = ft × 0.3048

Inch → Centimeter

cm = in × 2.54

Formula

cm = mm × 0.1

Millimeters offer extreme precision, centimeters for general measurement. Engineers and manufacturers switch between these for tolerance specifications.

Source: NIST SP 811, Table B.8

Last reviewed: 2026-06-11 · see our methodology

Frequently Asked Questions

Real-World Examples

10 millimeters equals 1 centimeter

10 mm = 1 cm

20 millimeters equals 2 centimeters

20 mm = 2 cm

100 millimeters equals 10 centimeters

100 mm = 10 cm

5 millimeters equals 0.5 centimeters

5 mm = 0.5 cm

cm to inches km to miles feet to meters inches to cm miles to km meters to feet

Millimeter to Centimeter Converter

Key Formulas

Formula

Frequently Asked Questions

Real-World Examples

Related Converters