How do you convert centimeters to millimeters?

To convert centimeters to millimeters, multiply by 10. For example, 45 cm is 450 mm.

How many millimeters are in a centimeter?

There are 10 millimeters in one centimeter.

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Converters · Length

45 Centimeters to Millimeters

45 cm =

450 mm

45 centimeters equals 450 millimeters

How to convert centimeters to millimeters

To get millimeters, multiply by 10.

mm = cm × 10

Worked example: 45 × 10 = 450 mm.

Going the other way, multiply by 0.1 — one millimeter is 0.1 centimeters.

Values near 45 cm

Centimeter	Millimeter
22.5 cm	225 mm
43 cm	430 mm
44 cm	440 mm
46 cm	460 mm
47 cm	470 mm
90 cm	900 mm

Centimeter to Millimeter — common values

Centimeter	Millimeter
1 cm	10 mm
2 cm	20 mm
3 cm	30 mm
5 cm	50 mm
10 cm	100 mm
25 cm	250 mm
50 cm	500 mm
100 cm	1000 mm

Convert Centimeter to other units

cm → m cm → km cm → mm cm → mi cm → yd cm → ft cm → in cm → nmi

← Reverse: Millimeter to Centimeter

Questions

How do you convert centimeters to millimeters?: To convert centimeters to millimeters, multiply by 10. For example, 45 cm is 450 mm.
How many millimeters are in a centimeter?: There are 10 millimeters in one centimeter.
How do you convert millimeters back to centimeters?: Go the other way: multiply by 0.1. One millimeter is 0.1 centimeters.

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