KM/H to M/S Converter
Convert kilometers per hour to meters per second instantly. 1 km/h = 0.2777777778 m/s, worked steps and a full reference table.
How to use it
- Type the value in kilometers per hour — the result updates as you type.
- Use Swap to flip the direction, or change either dropdown to convert between any two units.
- Click the result to copy it. The URL updates too, so you can bookmark or share the exact conversion.
Examples
| 1 km/h | 0.2777777778 m/s |
| 5 km/h | 1.388888889 m/s |
| 10 km/h | 2.777777778 m/s |
| 100 km/h | 27.77777778 m/s |
One kilometers per hour equals 0.27777778 meters per seconds (m/s). To convert kilometers per hours to meters per seconds, multiply by 0.27777778; to go back the other way, multiply by 3.6 instead.
The converter above does it as you type and shows the working underneath, so you can check the arithmetic rather than take the number on trust.
What kilometers per hours and meters per seconds actually measure
Kilometers per hour (km/h) — Kilometres per hour is the everyday metric speed unit. Road speed limits and vehicle speedometers in most countries.
Meters per second (m/s) — Metres per second is the SI unit of speed. Physics, wind speed and engineering.
KM/H to M/S conversion table
The most common values, worked out in advance. Anything not listed can be typed straight into the converter.
| km/h | m/s |
|---|---|
| 1 km/h | 0.27777778 m/s |
| 2 km/h | 0.55555556 m/s |
| 5 km/h | 1.3888889 m/s |
| 10 km/h | 2.7777778 m/s |
| 25 km/h | 6.9444444 m/s |
| 50 km/h | 13.888889 m/s |
| 100 km/h | 27.777778 m/s |
How to convert kilometers per hours to meters per seconds by hand
Multiply the number of kilometers per hours by 0.27777778.
For example, 25 km/h × 0.27777778 = 6.9444444 m/s.
Going the other way, divide by 0.27777778 — or multiply by 3.6, which is the same thing and easier to do in your head.
Everything runs in your browser
There is no server involved in the calculation. The numbers you type never leave your device, nothing is logged, and the page keeps working with no connection once it has loaded. That is not a marketing line — it is simply how the tool is built, because a calculation like this has no reason to touch a network.
Questions people ask
How many m/s are in 1 km/h?
1 km/h equals exactly 0.2777777778 m/s. Multiply any value in kilometers per hour by 0.2777777778 to get meters per second.
Is anything uploaded to a server?
No. The whole calculation happens in your browser. Nothing is sent anywhere, and the page keeps working offline once loaded.
Last updated 18 August 2026