690 meters per second in miles per hour
Conversion
690 meters per second is equivalent to 1543.48604151754 miles per hour.[1]
Conversion in the opposite direction
The inverse of the conversion factor is that 1 mile per hour is equal to 0.000647884057971015 times 690 meters per second.
It can also be expressed as: 690 meters per second is equal to miles per hour.
Approximation
An approximate numerical result would be: six hundred and ninety meters per second is about one thousand, five hundred and forty-three point four nine miles per hour, or alternatively, a mile per hour is about zero times six hundred and ninety meters 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.