How to use Speed Converter
- Enter the value you want to convert.
- Choose the unit you are converting from and the unit you want.
- Read the result and the table showing the value in every other unit.
About this tool
One mile per hour is exactly 0.44704 meters per second, and one knot is one nautical mile per hour, about 0.5144 meters per second. Mach 1 is the speed of sound, which depends on temperature and altitude; 340.29 m/s is the value at sea level in standard conditions.
To convert km/h to m/s, divide by 3.6.
Frequently Asked Questions
- How fast is 100 km/h in mph?
- About 62.14 mph.
- What is a knot?
- A speed of one nautical mile per hour, used in aviation and shipping.
Related tools
- Length ConverterConvert between millimeters, centimeters, meters, kilometers, inches, feet, yards and miles.
- Weight ConverterConvert between milligrams, grams, kilograms, ounces, pounds, stone and tonnes.
- Temperature ConverterConvert between Celsius, Fahrenheit, Kelvin and Rankine.
- Area ConverterConvert square meters, hectares, acres, square feet, square yards and square miles.
- Data Storage ConverterConvert bits, bytes, KB, MB, GB, TB and the binary units KiB, MiB, GiB and TiB.
- Fuel Economy ConverterConvert between mpg, L/100km and km/L.