Unit Converter

Speed Converter — km/h, mph, m/s, knots

Instantly convert km/h, mph, m/s, knots, and ft/s. Enter a value and see all units at once.

Converted to

m/s27.778
km/h100
mph62.137
kn53.996
ft/s91.134

What is the speed converter?

It converts between km/h, mph, m/s, knots, and ft/s. Enter a value in one unit and the rest update instantly.

How to use

  1. 1 Enter the value to convert.
  2. 2 Choose the source unit.
  3. 3 Read the converted results in every unit.

Highlights

Standard factors

Uses exact factors such as 1mph=1.60934km/h and 1knot=1.852km/h.

All at once

One input shows every unit simultaneously.

Instant

Results update as you type.

FAQ

What is 100 km/h in mph?+

100 km/h is about 62.137 mph.

What is a knot?+

A speed unit used in sailing and aviation: 1 knot = 1.852 km/h.

How to convert m/s to km/h?+

Multiply m/s by 3.6. For example, 10 m/s = 36 km/h.

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This converter uses international standard unit definitions and is for general reference.