20 millimeters in centimeters

Result

The conversion result is: 20 millimeters is equivalent to 2 centimeters.[1]

Conversion formula
How to convert 20 millimeters to centimeters?

We know (by definition) that: 1 mm = 0.1 cm.

We can set up a proportion to solve for the number of centimeters.

1 mm / 20 mm = 0.1 cm / x cm

Now, we cross multiply to solve for our unknown x:

x cm = (20 mm / 1 mm) * 0.1 cm → x cm = 2.0 cm

Conclusion:

20 mm = 2.0 cm

Conversion in the opposite direction

The inverse of the conversion factor is that 1 centimeter is equal to 0.5 times 20 millimeters.

It can also be expressed as: 20 millimeters is equal to 1 / 0.5 centimeters.

Approximation

An approximate numerical result would be: twenty millimeters is about zero centimeters, or alternatively, a centimeter is about zero times twenty millimeters.

Footnotes

[1] The precision is 15 significant digits (fourteen digits to the right of the decimal point).

Results may contain small errors due to the use of floating point arithmetic.