Measurement · Units

Speed Converter

Convert everyday and aviation speeds with live results for every unit.

  • Meters/second (m/s)27.7777777778
  • Kilometers/hour (km/h)100
  • Miles/hour (mph)62.1371192237
  • Feet/second (ft/s)91.1344415281
  • Knots (kn)53.9957269941
  • Mach (sea level ≈)0.0816297210549

How to use

  1. Enter a value and choose the source unit.
  2. Read conversions across all listed units.
  3. Copy the value you need.

Features

  • km/h, mph, m/s, knots
  • Mach (sea-level approx.)
  • Runs in your browser. Nothing is uploaded to ToolsWeb servers.

Privacy & how it works

This unit converter runs in your browser. Values you enter are not uploaded to ToolsWeb servers for this tool. Privacy Policy.

FAQ

How is Mach calculated?expand_more

Mach uses ≈340.29 m/s (speed of sound at sea level, 15 °C). Actual Mach depends on altitude and temperature.

Is this calculator free?expand_more

Yes. No signup required.

Are my numbers uploaded?expand_more

No. Calculations run in your browser. Inputs are not sent to ToolsWeb servers for this tool.

Is this professional advice?expand_more

No. Results are estimates for general information. See our Disclaimer for health, finance, and related tools.

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