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100 millimeters to centimeters

100 millimeters = 10 centimeters

Rounded to a practical precision: 10 cm.

How the calculation works

One millimeter is 0.1 centimeters, so:

100 mm × 0.1 = 10 cm

Reversing it, 10 centimeters ÷ 0.1 returns 100 millimeters.

Nearby values

MillimetersCentimeters
60 mm6 cm
70 mm7 cm
80 mm8 cm
90 mm9 cm
100 mm10 cm
110 mm11 cm
120 mm12 cm
130 mm13 cm
140 mm14 cm

About these units

Millimeter (mm) — A millimetre is one thousandth of a metre and is the default unit on engineering drawings and rulers.

Centimeter (cm) — A centimetre is one hundredth of a metre, the everyday metric unit for body measurements and small objects.

Frequently asked questions

How many centimeters is 100 millimeters?

100 millimeters is 10 centimeters.

How do I convert millimeters to centimeters myself?

Multiply by 0.1. To go back, divide by 0.1 — or multiply by 10.

Is this figure exact?

The conversion factor between the millimeter and the centimeter is fixed by definition. The figure above is rounded for readability; the converter carries full precision.

Convert other values

Full millimeters to centimeters converter · All length converters