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Speed Converter
Convert mph, km/h, m/s, knots, and feet per second.
How to Use the Speed Converter
- Enter a speed value.
- Select the source and target speed units.
- The converted value appears instantly.
Formula & Method
All conversions go through meters per second. Factors: mph=0.447, kmh=0.278, kn=0.514, fts=0.305.
Examples
| From | To | Result |
|---|---|---|
| 60 mph | km/h | 96.56 km/h |
| 100 km/h | m/s | 27.78 m/s |
Frequently Asked Questions
What is a knot?
A nautical mile per hour, used in aviation and maritime.
How fast is the speed of sound?
About 343 m/s or 1,235 km/h at sea level.
What is Mach 1?
The speed of sound in the local medium.
People Also Ask
How accurate is this calculator?
Our calculators use standard mathematical formulas and provide accurate results.
Can I use this on my phone?
Yes, all tools are fully responsive and work on any device.