Speed Converter
Convert speed between mph, km/h, m/s, knots and feet per second.
| Unit | Value |
|---|---|
| mph | 60 |
| km/h | 96.561 |
| m/s | 26.822 |
| knots | 52.139 |
| ft/s | 88 |
This speed converter turns a speed from one unit into another across the five units people use most: miles per hour, kilometres per hour, metres per second, knots and feet per second. Type a value, choose the unit you are converting from and the unit you want, and the result updates instantly alongside a table showing the same speed in every unit.
Every unit is converted through a common base — metres per second — so each result is exact to the defined factor. That means you can move freely between road speeds in mph or km/h, scientific figures in m/s, marine and aviation speeds in knots, and engineering values in feet per second without looking anything up.
How to use it
- 1Enter the speed value you want to convert.
- 2Pick the unit to convert from.
- 3Pick the unit to convert to.
- 4Read the converted value, plus the full table of all five units below.
Frequently asked questions
How many km/h are in one mph?+
One mile per hour is about 1.60934 kilometres per hour. To convert mph to km/h you multiply by roughly 1.60934, and to go the other way you divide by the same figure.
What is a knot?+
A knot is one nautical mile per hour, used in marine and aviation contexts. One knot is about 1.852 km/h or roughly 1.15078 mph, because a nautical mile is longer than a statute mile.
How do I convert m/s to km/h?+
Multiply metres per second by 3.6 to get kilometres per hour. For example, 10 m/s equals 10 × 3.6 = 36 km/h.
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