Speed Converter
Convert between different units of speed and velocity Convert between 17 different units instantly with our free online tool.
Formula: 1 m/s × 3.6 = 3.6 km/h
Available Speed Units
17 units supported for instant conversion
About Speed Conversion
Our free online speed converter helps you quickly and accurately convert between 17 different units of speed. Whether you're a student, professional, or simply need everyday conversions, you get instant, precise results with the formula displayed.
Convert between different units of speed and velocity This converter supports both metric and imperial units, making it ideal for international use. All conversions use internationally recognized standards and formulas.
Did You Know?
The fastest land animal, the cheetah, can reach about 120 km/h (75 mph) in short bursts — but can only sustain it for about 20–30 seconds.
The International Space Station orbits Earth at about 27,600 km/h (17,150 mph) — so fast that it experiences 16 sunrises and sunsets every 24 hours.
Sound travels at 343 m/s (1,235 km/h) in air at 20°C — but travels about 4.3× faster in water (1,480 m/s) and 13× faster in steel (4,540 m/s).
Light travels at 299,792 km per second in a vacuum. It takes about 8 minutes 20 seconds to travel from the Sun to Earth, and only 1.3 seconds to reach the Moon.
The fastest human-made object ever was the Parker Solar Probe, which reached about 692,000 km/h (430,000 mph) as it approached the Sun in 2023.
Why Use Our Speed Converter?
Instant Results
Conversions update as you type — no button clicks needed.
High Precision
Uses internationally standardized conversion factors (SI & NIST).
17+ Units
Convert between 17 speed units used around the world.
API & AI Ready
REST API and MCP server let apps and AI assistants convert programmatically.
Common Speed Conversion Table
Quick reference: Meter per Second (m/s) to other common units.
| Meter per Second (m/s) | Kilometer per Hour (km/h) | Mile per Hour (mph) | Foot per Second (ft/s) | Knot (kn) |
|---|---|---|---|---|
| 1 | 3.6 | 2.236936 | 3.28084 | 1.943844 |
| 2 | 7.2 | 4.473873 | 6.56168 | 3.887689 |
| 5 | 18 | 11.18468 | 16.4042 | 9.719222 |
| 10 | 36 | 22.36936 | 32.8084 | 19.43844 |
| 25 | 90 | 55.92341 | 82.021 | 48.59611 |
| 50 | 180 | 111.8468 | 164.042 | 97.19222 |
| 100 | 360 | 223.6936 | 328.084 | 194.3844 |
How to Use This Speed Converter
Enter Value
Type the number you want to convert
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Select To Unit
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