# 31 inches in centimeters

## Conversion

31 inches is equivalent to 78.74 centimeters.[1]

## Conversion formula How to convert 31 inches to centimeters?

We know (by definition) that: $1\mathrm{in}=2.54\mathrm{cm}$

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

$1 ⁢ in 31 ⁢ in = 2.54 ⁢ cm x ⁢ cm$

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

$x\mathrm{cm}=\frac{31\mathrm{in}}{1\mathrm{in}}*2.54\mathrm{cm}\to x\mathrm{cm}=78.74\mathrm{cm}$

Conclusion: $31 ⁢ in = 78.74 ⁢ cm$

## Conversion in the opposite direction

The inverse of the conversion factor is that 1 centimeter is equal to 0.0127000254000508 times 31 inches.

It can also be expressed as: 31 inches is equal to $\frac{1}{\mathrm{0.0127000254000508}}$ centimeters.

## Approximation

An approximate numerical result would be: thirty-one inches is about zero centimeters, or alternatively, a centimeter is about zero point zero one times thirty-one inches.

## 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.