# 138 miles per hour in kilometers per hour

## Conversion

138 miles per hour is equivalent to 222.089472 kilometers per hour.^{[1]}

## Conversion in the opposite direction

The inverse of the conversion factor is that **1 kilometer per hour is equal to 0.00450268979882126 times 138 miles per hour**.

It can also be expressed as: 138 miles per hour is equal to $\frac{1}{\mathrm{0.00450268979882126}}$ kilometers per hour.

## Approximation

An approximate numerical result would be: **one hundred and thirty-eight miles per hour is about two hundred and twenty-two point zero nine kilometers per hour**, or alternatively, *a kilometer per hour is about zero times one hundred and thirty-eight miles per hour*.

## 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.