20 centimeters in inches

Conversion formula
How to convert 20 centimeters to inches?

We know (by definition) that: $1\mathrm{cm}\approx 0.39370079\mathrm{in}$

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

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

Conclusion: 20 ⁢ cm ≈ 7.8740158000000005 ⁢ in

Conversion in the opposite direction

The inverse of the conversion factor is that 1 inch is equal to 0.127 times 20 centimeters.

It can also be expressed as: 20 centimeters is equal to $\frac{1}{\mathrm{0.127}}$ inches.

Approximation

An approximate numerical result would be: twenty centimeters is about seven point eight seven inches, or alternatively, a inch is about zero point one three times twenty centimeters.