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Speed Converter

How do I convert speed units?

How to use

  1. Enter your values in the fields above.
  2. Press Calculate to see your result instantly.
  3. Use the Share button to copy a link to your result.

About this calculator

This tool converts a speed value between the five units people actually encounter day to day: kilometers per hour (used on most road signs and car speedometers outside the US), miles per hour (US and UK road speeds), meters per second (the SI unit used in physics and engineering), knots (nautical and aviation speed), and feet per second (some US engineering contexts).

It is used by travelers renting a car abroad and needing to read unfamiliar speed limits, students and engineers converting between metric and imperial in physics problems, and pilots or sailors working with knots alongside ground-based units.

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