21 kilometers per hour in miles per hour

Result

The conversion result is: 21 kilometers per hour is equivalent to 13.048795036984 miles per hour.[1]



Conversion in the opposite direction

The inverse of the conversion factor is that 1 mile per hour is equal to 0.0766354285714286 times 21 kilometers per hour.

It can also be expressed as: 21 kilometers per hour is equal to 1 / 0.0766354285714286 miles per hour.


Approximation

An approximate numerical result would be: twenty-one kilometers per hour is about thirteen point zero five miles per hour, or alternatively, a mile per hour is about zero point zero eight times twenty-one kilometers 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.