Centimeters to Millimeters Converter

Centimeters to Millimeters Converter

Millimeters
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Inches
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1 cm = 10 mm · 1 cm = 0.393701 inches

How to convert centimeters to millimeters

To convert centimeters to millimeters, multiply by 10. There are exactly 10 millimeters in every centimeter. For example, 5 cm × 10 = 50 mm. Going the other way, divide millimeters by 10 to get centimeters.

To convert centimeters to inches, multiply by 0.393701. So 10 cm × 0.393701 = 3.937 inches.

1 cm = 10 mm = 0.393701 inches = 0.01 meters. This is one of the simplest metric conversions since it is just multiplying or dividing by 10.

Centimeters to millimeters conversion table

Centimeters (cm) Millimeters (mm) Inches (in)
1 cm10 mm0.394 in
2.54 cm25.4 mm1 in
5 cm50 mm1.969 in
10 cm100 mm3.937 in
15 cm150 mm5.906 in
20 cm200 mm7.874 in
30 cm300 mm11.811 in
100 cm (1 m)1000 mm39.370 in

Frequently asked questions

How many millimeters are in a centimeter?
There are exactly 10 millimeters in 1 centimeter. 1 cm = 10 mm = 0.393701 inches = 0.01 meters.
How many mm is 2.5 cm?
2.5 cm = 25 mm = 0.984 inches. Calculation: 2.5 × 10 = 25 mm.
How many cm is 150 mm?
150 mm = 15 cm = 5.906 inches. Calculation: 150 ÷ 10 = 15 cm.
How many mm is 1 inch?
1 inch = 25.4 mm = 2.54 cm. This is an exact conversion defined by international standard.
How many mm is 30 cm?
30 cm = 300 mm = 11.811 inches. A standard ruler is 30 cm = 300 mm long.