# Convert Knots to MPH – Wind Speed Unit Calculator

With this simple unit conversion tool, you can quickly convert any wind speed from an initial unit (miles per hour, feet per second, meters per second, knots, and kilometers per hour) to all other units listed. This is very helpful when you quickly need to see what one measure equates to in other units.

If you experience difficulty using the calculator (for example, if it appears to be broken), suggestions, or general questions, please use the contact form listed in the top navigation under “About”.

Tidbit: Many people incorrectly use “velocity” when referring to speed. Velocity and speed are not interchangeable. Velocity is a vector that contains information about an object’s direction of motion and speed. Wind speed (used in the calculator below) is a scalar, not velocity; the unit conversion tool below does not rely on the wind direction — only the wind speed. Therefore, only the phrase “wind speed” is used in this case, not “velocity”. An example of wind velocity would be “northeast wind at 10 knots” since that phrase provides information about both wind direction and its speed. A wind vector can also be represented graphically using any vector form such as a wind barb, dynamic arrow (i.e., variable length is proportional to the wind speed), or plotted graphically as a time series, for example.

 Wind Speed Conversion Initial wind speed: Select the initial units Answers: mph mph knots knots m/s m/s ft/s ft/s km/h km/h