Whether you’re converting car speed, airspeed, or just want to know how fast 10 m/s is in miles per hour, this Speed Converter makes it easy. Just type a value, choose the unit, and instantly get conversions in km/h, mph, m/s, knots, and feet per second.
It’s fast, clear, and made for people who want practical results not formulas.
How to Use:
- Enter a speed value (e.g.
100) - Select the input unit (starts on km/h by default)
- Live output: All speed units update instantly
- Copy button: Click once to copy everything
Toggle Options:
- Round result: Rounds to 6 decimal places
- Trim trailing zeros: Removes decimal clutter
- Show units: Adds unit labels like “mph” or “m/s”
Output Modes:
- Standard: Just the values
- Verbose: Full sentences (e.g. “100 km/h is 62.13 mph”)
- Scientific: Uses exponential notation (e.g. 6.213e+1)
What the Speed Converter Can Do:
Trying to compare a car’s top speed in km/h to mph? Looking up the cruising speed of an airplane in knots? Or want to see how fast someone runs 10 m/s in mph? This tool gives you all the answers instantly.
You can even use it for vehicle specs, treadmill conversions, and aviation speeds without switching tabs.
Example:
Input:
Value: 100
Unit: km/h
Mode: Verbose
Options: Round ON, Units ONOutput:
100 km/h is 100 kmh
100 km/h is 27.777778 ms
100 km/h is 62.137119 mph
100 km/h is 53.995681 fts
100 km/h is 53.995681 knotCommon Speed Examples:
This chart shows real-world speeds in multiple units from walking pace to fighter jet speeds so you can compare at a glance.pecs, or cross-checking horsepower ratings for motors and machines. It’s also helpful when comparing specs between EU and US equipment, or calculating power needs for solar, HVAC, or kitchen installs.
| km/h | mph | m/s | Knots | Example |
|---|---|---|---|---|
| 5 | 3.1 | 1.39 | 2.7 | Walking pace |
| 13 | 8.1 | 3.61 | 7.0 | Average running speed |
| 25 | 15.5 | 6.94 | 13.5 | Bicycle (city pace) |
| 50 | 31.1 | 13.89 | 27.0 | Electric scooter or moped |
| 90 | 55.9 | 25.0 | 48.6 | Urban speed limit (EU) |
| 100 | 62.1 | 27.78 | 53.9 | Typical car cruising speed |
| 160 | 99.4 | 44.4 | 86.4 | Highway speed / sports car |
| 300 | 186.4 | 83.3 | 161.9 | Bullet train |
| 900 | 559.2 | 250.0 | 485.6 | Commercial jet (cruise) |
| 2500 | 1553.4 | 694.4 | 1349.9 | Fighter jet (Mach 2+) |
Common Use Cases:
This Speed Converter is helpful for comparing vehicle specs, converting aviation speeds, setting treadmill targets, or calculating how fast something moves in different unit systems. Whether you’re a runner, a pilot, or just curious it’s fast, accurate, and clear.