Speed Converter

Convert between km/h, mph, m/s, and ft/s instantly.

Convert Speed

Enter a value and choose the units to convert between.

Supported Units

  • Kilometers per hour (km/h)
  • Miles per hour (mph)
  • Meters per second (m/s)
  • Feet per second (ft/s)

How It Works

All values are converted internally to meters per second (m/s), then converted to the target unit for accurate results.

Conversion Constants

  • 1 km/h = 0.277778 m/s
  • 1 mph = 0.44704 m/s
  • 1 ft/s = 0.3048 m/s

Example

Convert 60 mph to km/h:

  • 60 mph × 0.44704 = 26.8224 m/s
  • 26.8224 ÷ 0.277778 = 96.56 km/h

FAQ

Does it support decimals?
Yes — all values can be decimal numbers.

Is this accurate?
Yes — all conversions use standard scientific constants.

Can I convert very high speeds?
Absolutely — the calculator supports extremely large values.

Understanding Speed Units

Speed measures how fast an object moves over time. Different fields use different units, such as km/h for vehicles, m/s for physics, and ft/s for engineering.

Common Speed Conversions

Real‑World Speed Examples

Tips for Accurate Speed Conversion

Additional FAQ

Can I convert negative speeds?
Negative speeds are uncommon but mathematically valid.

Is this tool suitable for physics?
Yes — it uses precise scientific constants.

Does this support knots?
Not yet — but it can be added in future updates.