Definition: A knot is a unit of measurement for wind speed. In a station model diagram, the knot is generally the standard unit used to indicate wind speed. Mathematically, one knot is equal to approximately 1.1508 statute miles.
Formula to convert knots to mph
x knots X .1.1507794 = mph
Formula to convert mph to knots
x mph X .8689762 = knots
If you do not feel like completing the math for the conversion of knots to miles per hour (mph) or kilometers per hour (kph), you can use a free online wind speed calculator to convert the results.