Convert meters per second to kilometers per hour instantly. Enter a value below, or use the formula and reference table further down the page.
In practice
Metres per second to kilometres per hour multiplies by 3.6, because an hour has 3,600 seconds and a kilometre has 1,000 metres. It is the conversion used in physics, sprinting and weather: a 10 m/s wind is 36 km/h, and Usain Bolt's peak speed of about 12.4 m/s is roughly 44.7 km/h. For driving and everyday speeds, kilometres per hour is the familiar figure, so converting from the scientific unit makes it relatable — 27.8 m/s is a motorway speed of 100 km/h.
How to convert meters per second to kilometers per hour
Multiply the value by 3.6.
km/h = m/s × 3.6Example: 10 m/s = 36 km/h.
Meters per second to Kilometers per hour conversion table
| Meters per second (m/s) | Kilometers per hour (km/h) |
|---|---|
| 1 m/s | 3.6 km/h |
| 2 m/s | 7.2 km/h |
| 3 m/s | 10.8 km/h |
| 4 m/s | 14.4 km/h |
| 5 m/s | 18 km/h |
| 10 m/s | 36 km/h |
| 15 m/s | 54 km/h |
| 20 m/s | 72 km/h |
| 25 m/s | 90 km/h |
| 50 m/s | 180 km/h |
| 100 m/s | 360 km/h |
Frequently asked questions
How many kilometers per hour is 1 m/s?
1 m/s equals 3.6 kilometers per hour.
What is the formula to convert m/s to km/h?
To convert m/s to km/h, multiply the value by 3.6. The full formula is: km/h = m/s × 3.6.
How do I convert kilometers per hour back to meters per second?
Use the same calculator above and type your value into the kilometers per hour field instead — it converts in both directions. Or use the reverse formula: m/s = km/h ÷ 3.6.
Is the m/s to km/h conversion exact?
The conversion factor used here (3.6) is the standard internationally defined value. Results on this page are rounded to four decimal places for readability.