121 knots in miles per hour
Result
The conversion result is: 121 knots is equivalent to 139.244313210849 miles per hour.[1]
Conversion in the opposite direction
The inverse of the conversion factor is that 1 mile per hour is equal to 0.00718162183388965 times 121 knots.
It can also be expressed as: 121 knots is equal to 1 / 0.00718162183388965 miles per hour.
Approximation
An approximate numerical result would be: one hundred and twenty-one knots is about one hundred and thirty-nine point two four miles per hour, or alternatively, a mile per hour is about zero point zero one times one hundred and twenty-one knots.
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.