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Every Tools

Speed Converter

Convert mph, km/h, m/s, and knots instantly in your browser.

Tool workspace

Conversion runs in your browser among mph, km/h, m/s, and knots. Values are not sent to our servers.

Converted values

How it works

Enter a speed and choose the source unit (mph, km/h, m/s, or knots). Results for the other three units update as you type.

Conversion uses metres per second as the pivot with documented international factors: 1 mph = 0.44704 m/s (international mile = 1609.344 m), 1 km/h = 1/3.6 m/s, and 1 knot = 1852/3600 m/s (international nautical mile = 1852 m).

Empty input clears the results—no error. Non-numeric or negative values show a validation message. Zero is valid. Use Sample for 60 mph.

Examples

  • 60 mph → 96.56064 km/h → 26.8224 m/s → ≈52.14 knots
  • 1 m/s → 3.6 km/h → ≈2.23694 mph
  • 1 knot → 1.852 km/h → ≈1.15078 mph
  • 100 km/h → ≈62.137 mph → ≈27.778 m/s

Privacy

Privacy: this tool processes values locally in your browser. We do not log or store what you enter. Login is not required.

FAQ

Is my value uploaded to a server?

No. Conversion runs entirely in your browser. Values are not sent to Every Tools.

Which mile and knot definitions do you use?

The international mile (1609.344 m) and the international nautical mile (1852 m). That yields 1 mph = 0.44704 m/s and 1 knot = 1852/3600 m/s exactly.

Why are negative speeds rejected?

This tool converts scalar speed magnitudes. Signed velocity or direction is out of scope.

Do I need an account?

No. All published tools work for guests without login.

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