# 660 feet per second in miles per hour

## Conversion

660 feet per second is equivalent to 450 miles per hour.^{[1]}

## Conversion in the opposite direction

The inverse of the conversion factor is that **1 mile per hour is equal to 0.00222222222222222 times 660 feet per second**.

It can also be expressed as: 660 feet per second is equal to $\frac{1}{\mathrm{0.00222222222222222}}$ miles per hour.

## Approximation

An approximate numerical result would be: **six hundred and sixty feet per second is about four hundred and fifty miles per hour**, or alternatively, *a mile per hour is about zero times six hundred and sixty feet per second*.

## 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.