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Units & converters

Speed converter

Compare speeds in m/s, km/h, mph, knots and feet per second.

Free & no registration Calculated in your browser
01

Your inputs

The starting values are an example.

Decimals: 12.5 · Thousands: 1,234.56. Follow the field instructions for lists.

02

Your result

Enter your values and select Calculate.

Your calculation will appear here.

Your result will include the relevant values and units.

Understand the calculation

Formula and example

How it is calculated

Converted value = original value × source factor / target factor

Worked example

36 km/h = 10 m/s.

Things to check

  • One knot is one nautical mile per hour. An international mile and a nautical mile have different lengths.
  • Rounding is applied only to displayed results. Very small or very large values may appear in scientific notation.

Sources and references