Conversion in the opposite direction
The inverse of the conversion factor is that 1 knot is equal to 0.00216719293413096 times 531 miles per hour.
It can also be expressed as: 531 miles per hour is equal to knots.
An approximate numerical result would be: five hundred and thirty-one miles per hour is about four hundred and sixty-one point four three knots, or alternatively, a knot is about zero times five hundred and thirty-one miles per hour.
 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.