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Speed Converter

Convert speeds between various units like miles/hour, kilometers/hour, meters/second, feet/second, and knots.

Speed Converter

Advanced Speed Converter

Our Speed Converter is a comprehensive tool for converting between various common units of speed, including kilometers per hour (km/h), miles per hour (mph), meters per second (m/s), feet per second (ft/s), and knots (kt).


🏎️ How to Use the Converter

  1. Enter Speed: Input the numerical value of the speed you wish to convert.
  2. Select 'From' Unit: Choose the original unit of your input speed from the dropdown list.
  3. Select 'To' Unit: Choose the target unit you want to convert the speed to.
  4. Click "Convert": The tool will perform the calculation.
  5. View Result: The converted speed is displayed, along with a visual breakdown showing the intermediate conversion to meters per second (m/s) and then to the final unit. You can use the swap button (⇄) to quickly interchange the 'From' and 'To' units.

Supported Units

This converter supports the following speed units:

  • Metre per second (m/s): The SI derived unit of speed.
  • Kilometre per hour (km/h or kph): Commonly used worldwide for road traffic.
  • Mile per hour (mph): Used for road traffic in the US, UK, and some other countries.
  • Foot per second (ft/s): Sometimes used in physics or engineering contexts.
  • Knot (kt): Used in maritime and aviation; one nautical mile per hour.

🔢 Conversion Process & Factors

All conversions are standardized by first converting the input speed to meters per second (m/s), and then from m/s to the target unit. Key approximate conversion factors to m/s are:

  • 1 km/h ≈ 0.277778 m/s
  • 1 mph ≈ 0.447040 m/s
  • 1 ft/s = 0.304800 m/s (exact)
  • 1 knot ≈ 0.514444 m/s

The "Visual Calculation" section shows this two-step process.


💡 Frequently Asked Questions (FAQ)

What is a knot?
A knot is a unit of speed equal to one nautical mile per hour. It is the standard unit of speed in maritime and aviation contexts because a nautical mile relates directly to the latitude/longitude coordinate system of the Earth.
Is m/s faster than km/h?
Yes. One meter per second (m/s) is equal to 3.6 kilometers per hour (km/h). This makes m/s a larger unit of speed.

Related Keywords

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km/h to mph
mph to km/h
m/s to km/h
knots to mph
feet per second
velocity conversion
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