Speed Converter Tools
Free online speed conversion calculators for all your needs. Easily convert between kilometers per hour, miles per hour, meters per second, feet per second, knots, and more with our accurate and user-friendly tools.
Speed Unit Conversion Tools
Our collection of speed converters helps you quickly and accurately convert between different speed and velocity units. Whether you need to convert between metric units like kilometers per hour and meters per second, imperial units like miles per hour and feet per second, or specialized units like knots, our tools have you covered.
Each converter features:
- Real-time conversion with up to 9 decimal places precision
- Mobile-friendly interface with copy and reset functionality
- Common conversion tables for quick reference
- Detailed explanations of conversion formulas
- Practical examples and speed benchmarks
Simply select the converter you need from the options below to get started.
Metric to Metric Speed Converters
Imperial to Imperial Speed Converters
Metric to Imperial Speed Converters
km/h to mph Converter
Convert kilometers per hour to miles per hour. 1 km/h = 0.621371 mph.
mph to km/h Converter
Convert miles per hour to kilometers per hour. 1 mph = 1.60934 km/h.
m/s to mph Converter
Convert meters per second to miles per hour. 1 m/s = 2.236936 mph.
mph to m/s Converter
Convert miles per hour to meters per second. 1 mph = 0.44704 m/s.
Nautical Speed Converters
About Speed Units
Speed is the measure of how quickly an object moves from one place to another. It is calculated as distance traveled divided by time taken. Different units of speed are used in different contexts and regions around the world.
Common Speed Units:
| Unit | Symbol | System | Common Uses |
|---|---|---|---|
| Kilometer per hour | km/h, kph | Metric | Vehicle speeds in most countries, wind speeds |
| Mile per hour | mph | Imperial/US | Vehicle speeds in US, UK, and some other countries |
| Meter per second | m/s | SI (metric) | Scientific measurements, physics calculations |
| Foot per second | ft/s, fps | Imperial/US | Ballistics, fluid dynamics, some sports |
| Knot | kn, kt | Nautical | Marine navigation, aviation, meteorology |
Our speed converter tools make it easy to switch between these different units for any application, whether you’re working on scientific calculations, planning a trip, analyzing sports performance, or navigating at sea.