Speed Converter Speed Converter Enter Speed Value From Unit Meters per second (m/s) Kilometers per hour (km/h) Miles per hour (mph) Feet per second (ft/s) Knots Mach Centimeters per second (cm/s) Inches per second (in/s) To Unit Meters per second (m/s) Kilometers per hour (km/h) Miles per hour (mph) Feet per second (ft/s) Knots Mach Centimeters per second (cm/s) Inches per second (in/s) Convert