This kilometers per hour to meters per second converter gives you the km/h to m/s result instantly, in your browser, with the exact ratio so you can verify it. 1 kilometer per hour is about 0.277778 meters per second, and going the other way, 1 meter per second is 3.6 kilometers per hour. Kilometers per hour are part of the metric system used in most countries; meters per second are an SI unit used in science and engineering.
To convert by hand, multiply the number of kilometers per hour by 0.277778. For example, 10 kilometers per hour is 2.77778 meters per second and 100 kilometers per hour is 27.7778 meters per second. The table below lists the most requested values, and the converter above accepts decimals for anything in between.
km/h to m/s formula
m/s = km/h × 0.277778
1 kilometer per hour is about 0.277778 meters per second. Multiply the value in kilometers per hour by that factor to get meters per second.
Kilometers per hour to Meters per second conversion table
| kilometers per hour | meters per second | Rounded |
|---|---|---|
| 1 km/h | 0.277778 m/s | 0.278 |
| 2 km/h | 0.555556 m/s | 0.556 |
| 3 km/h | 0.833333 m/s | 0.833 |
| 4 km/h | 1.11111 m/s | 1.11 |
| 5 km/h | 1.38889 m/s | 1.39 |
| 6 km/h | 1.66667 m/s | 1.67 |
| 7 km/h | 1.94444 m/s | 1.94 |
| 8 km/h | 2.22222 m/s | 2.22 |
| 9 km/h | 2.5 m/s | 2.5 |
| 10 km/h | 2.77778 m/s | 2.78 |
| 12 km/h | 3.33333 m/s | 3.33 |
| 15 km/h | 4.16667 m/s | 4.17 |
| 20 km/h | 5.55556 m/s | 5.56 |
| 25 km/h | 6.94444 m/s | 6.94 |
| 30 km/h | 8.33333 m/s | 8.33 |
| 40 km/h | 11.1111 m/s | 11.1 |
| 50 km/h | 13.8889 m/s | 13.9 |
| 60 km/h | 16.6667 m/s | 16.7 |
| 70 km/h | 19.4444 m/s | 19.4 |
| 75 km/h | 20.8333 m/s | 20.8 |
| 80 km/h | 22.2222 m/s | 22.2 |
| 90 km/h | 25 m/s | 25 |
| 100 km/h | 27.7778 m/s | 27.8 |
| 150 km/h | 41.6667 m/s | 41.7 |
| 200 km/h | 55.5556 m/s | 55.6 |
| 250 km/h | 69.4444 m/s | 69.4 |
| 300 km/h | 83.3333 m/s | 83.3 |
| 500 km/h | 138.889 m/s | 139 |
| 750 km/h | 208.333 m/s | 208 |
| 1,000 km/h | 277.778 m/s | 278 |
Frequently asked questions
How many meters per second are in 5 kilometers per hour?
5 km/h = 1.38889 m/s. Multiply 5 by 0.277778, the number of meters per second in one kilometer per hour. The converter on this page does the same arithmetic for any value, including decimals.
What is the formula to convert kilometers per hour to meters per second?
m/s = km/h × 0.277778. The factor comes from the definitions of the units: 1 kilometer per hour is about 0.277778 meters per second. Worked example: 12 km/h = 3.33333 m/s.
Is 30 km/h the same as 8.33333 m/s?
Yes. 30 km/h = 8.33333 m/s. Rounded to four decimals it is 8.333 m/s.
How do I convert meters per second back to kilometers per hour?
Divide by 0.277778, or multiply by 3.6: 1 meter per second is 3.6 kilometers per hour. The meters per second to kilometers per hour page linked above lists common values the other way.
Is the km/h to m/s conversion exact?
1 kilometer per hour is about 0.277778 meters per second. The ratio is a defined constant but produces a long decimal, so this page rounds to six significant digits, which is more precision than any everyday measurement needs.