680 meters per second in miles per hour
Result
The conversion result is: 680 meters per second is equivalent to 1521.11667859699 miles per hour.[1]
Conversion in the opposite direction
The inverse of the conversion factor is that 1 mile per hour is equal to 0.000657411764705882 times 680 meters per second.
It can also be expressed as: 680 meters per second is equal to 1 / 0.000657411764705882 miles per hour.
Approximation
An approximate numerical result would be: six hundred and eighty meters per second is about one thousand, five hundred and twenty-one point one one miles per hour, or alternatively, a mile per hour is about zero times six hundred and eighty 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.