3 cm to mm

3 centimeters converted to millimeters, with the formula, the values around it and the same amount in other units.

Answer

30 mm

3 cm = 30 mm

3 × 10 = 30

30
millimeters → Centimeters Formula: mm = cm × 10

Values near 3 cm

cmmm
2.9 29
2.92 29.2
2.94 29.4
2.96 29.6
2.98 29.8
cmmm
3 30
3.02 30.2
3.04 30.4
3.06 30.6
3.08 30.8
cmmm
3.1 31
3.2 32
3.4 34
4 40
5 50

Linked values open a page of their own; the others are computed here.

3 cm in other units

3 cm = 30 mm
3 cm = 30 mm, as an image to save or share.

How we got 30

One centimeter is 10 millimeters, so millimeters = centimeters × 10.

3 × 10 = 30, shown here as 30 mm.

The centimeter and the millimeter are both defined in terms of the metre and the kilogram, so this factor is exact, not an approximation.

Frequently asked questions

How many millimeters is 3 centimeters?
3 centimeters is 30 millimeters. 3 × 10 = 30.
What is 3 centimeters in meters?
3 centimeters is 0.03 m.
How do I convert centimeters to millimeters?
Multiply by 10. For 3 centimeters: 3 × 10 = 30.