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Speed Converter
Convert speeds between kilometres per hour, miles per hour, metres per second, feet per second and knots.
Speed Converter
Legendary velocity translation with supersonic precision.
CONVERTED VELOCITY
0.00
Unit Name
Multi-Unit Breakdown
About the Speed Converter
Convert speeds between kilometres per hour, miles per hour, metres per second, feet per second and knots.
How to use the Speed Converter
- Enter the Value and select the Unit.
- Press Convert to see every equivalent speed.
Formula and method
Everything is converted through metres per second: 1 km/h = 0.27778 m/s, 1 mph = 0.44704 m/s, 1 knot = 0.514444 m/s.
| Unit | Equals |
|---|---|
| 1 m/s | 3.6 km/h |
| 1 mph | 1.609344 km/h |
| 1 knot | 1.852 km/h |
| 1 km/h | 0.621371 mph |
Worked example
100 km/h = 100 × 0.621371 = 62.14 mph = 27.78 m/s.
Road speeds. 100 km/h = about 62.1 mph. 60 mph is roughly 96.6 km/h. To get m/s from km/h, divide by 3.6.
When to use the Speed Converter
- Converting speed limits and vehicle speeds between km/h and mph.
- Working with wind speeds, flight speeds and running paces.
- Physics problems in metres per second.
Common mistakes to avoid
- Mixing knots (nautical miles per hour) and mph.
- Forgetting to convert hours to seconds when moving to m/s.
Tips
- To convert km/h to m/s, divide by 3.6.
- Knots are used in aviation and at sea.
Frequently asked questions
How fast is 60 mph in km/h?
About 96.56 km/h.
What is a knot?
One nautical mile per hour, about 1.852 km/h.
What is Mach 1?
The speed of sound, about 343 m/s in air at 20 °C. It varies with temperature.