Meters per second to Kilometers per hour Converter
Convert Meters per second (m/s) to Kilometers per hour (km/h). Results update as you type, with a conversion table and the formula below.
1 m/s =
3.6 km/h
m/s to km/h conversion table
| m/s | km/h |
|---|---|
| 1 | 3.6 |
| 2 | 7.2 |
| 3 | 10.8 |
| 4 | 14.4 |
| 5 | 18 |
| 6 | 21.6 |
| 7 | 25.2 |
| 8 | 28.8 |
| 9 | 32.4 |
| 10 | 36 |
| 15 | 54 |
| m/s | km/h |
|---|---|
| 20 | 72 |
| 25 | 90 |
| 30 | 108 |
| 40 | 144 |
| 50 | 180 |
| 60 | 216 |
| 70 | 252 |
| 80 | 288 |
| 90 | 324 |
| 100 | 360 |
How to use
- Type the m/s value to convert.
- The result appears instantly in km/h; the swap button reverses direction.
- For common values, check the conversion table below.
Frequently asked questions
How many km/h is 1 m/s?+
1 m/s = 3.6 km/h. The table below lists the values you'll reach for most often.
How strong is a wind of 15 metres per second?+
About 54km/h — enough to turn umbrellas inside out and make walking awkward. Past 20m/s (72km/h) it starts causing real damage, tearing down signage and branches.
How accurate are the results?+
The math uses internationally standardized definitions; only the display is rounded to significant digits. Accurate enough for school, work and daily life.
How do I convert km/h back to m/s?+
Hit the swap arrows in the middle of the converter above — the direction flips and your value is kept.
Is it really free?+
Yes. No sign-up, no install, no usage limits. The site is ad-supported.
Unit guide
The formula
1 m/s equals 3.6 km/h — multiply a m/s value by 3.6 to get km/h. Example: 5 m/s × 3.6 = 18 km/h.
Going the other way, 1 km/h = 0.277778 m/s — multiply by 0.277778, or hit the swap button on the converter above.
When is this conversion needed?
Useful for speed-limit signs abroad, storm wind speeds (knots) and running or cycling pace math.
Where metres per second meets km/h
Weather forecasting is the familiar case. Many meteorological services report wind in metres per second, which is hard to feel for anyone whose sense of speed comes from driving. Physics problems and athletics records move between the two as well.