Speed Unit Converter

To perform conversion between various speed or velocity units, start by selecting the original unit using the “From:” drop-down list and the target unit from the “To:” drop-down list. Then enter the original value into the input field on the left. The tool will instantly display the converted value at the top of the page.  

This converter supports the following speed and velocity measurement units:

Foot / minute (ft/min):

The speed or velocity measured in feet per minute.

1 ft/min = 0.00508 m/s = 0.018288 km/h

Foot / second (ft/s):

The speed or velocity measured in feet per second.

1 ft/s = 0.3048 m/s = 1.09728 km/h

Kilometer / hour (km/h):

The speed measured in kilometers per hour.

1 km/h = 0.27778 m/s = 0.621371 mi/h

Knot:

A unit of speed used in navigation, especially in aviation and maritime contexts. One knot is equal to one nautical mile per hour.

1 knot = 0.514444 m/s =  1.852 km/h

Meter / second (m/s):

The speed or velocity measured in meters per second.

1 m/s = 3.28084 ft/s = 3.6 km/h

Mile / hour (US) (mi/h):

The speed measured in miles per hour (U.S. standard).

1 mi/h = 1.46667 ft/s = 1.60934 km/h

Mile / minute (US) (mi/min):

The speed measured in miles per minute (U.S. standard).

1 mi/min = 88 ft/s = 96.5604 km/h

Mile / second (US) (mi/s):

The speed measured in miles per second (U.S. standard).

1 mi/s = 5280 ft/s = 5793.64 km/h

Nautical mile / hour:

The speed measured in nautical miles per hour, commonly used in maritime and aviation navigation.

1 nautical mile/hour = 1 knot = 1.852 km/h

Speed of light (c):

The speed at which electromagnetic waves, including light, propagate in a vacuum. Denoted by the symbol c. 

1 c ≈ 299,792,458 m/s