Speed Converter
Convert speed units instantly—m/s, km/h, mph, and knots. Useful for driving, running, cycling, aviation, and more.
Tip: switch units to compare speeds across regions (km/h vs mph) instantly.
What is a speed converter?
A speed converter helps you convert velocity values between different units. This tool supports meters per second (m/s), kilometers per hour (km/h), miles per hour (mph), and knots (kn). It’s great for travel, transportation, sports, and engineering. Conversions are calculated in real time and run locally in your browser for speed and privacy.
How to use
- Enter the speed value.
- Select the “From” unit (e.g., km/h).
- Select the “To” unit (e.g., mph).
- Copy the result if needed.
Common use cases
- Driving: convert speed limits (km/h ↔ mph).
- Running and cycling: compare training metrics.
- Aviation and sailing: convert knots to other units.
FAQ
What is a knot?
A knot is a nautical mile per hour, commonly used in aviation and maritime contexts.
Why do results show decimals?
Many speed conversions are not whole numbers. We keep enough precision and trim trailing zeros.
Is m/s the base unit?
Yes. We convert through meters per second internally for accurate and consistent results.