Meters per Second to Kilometers per Hour

1 m/s = 3.6 km/h

Meters per second to kilometers per hour turns the SI unit of speed into one people can feel. It is used for physics homework results, sprint and athletics speeds, and wind speeds, which forecasters in several countries, including the Nordic countries, report in meters per second.

From

When you need to convert meters per second to kilometers per hour

Making sense of wind speeds reported in m/s in a weather forecast
Expressing a physics problem answer in everyday units
Converting sprint or running speeds measured in m/s
Reading anemometer or drone telemetry data

How to convert meters per second to kilometers per hour

km/h = m/s × 3.6

Example: 5 m/s = 18 km/h

Common speeds

Meters per Second (m/s)	Kilometers per Hour (km/h)
1 m/s	3.6 km/h
2 m/s	7.2 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
30 m/s	108 km/h
50 m/s	180 km/h
100 m/s	360 km/h

Tips for converting meters per second to kilometers per hour

Multiply by exactly 3.6, because one hour has 3,600 seconds and one kilometer has 1,000 meters.
Mental shortcut: multiply by 4, then subtract 10% of that. It gives the exact 3.6 result.
Dividing by 3.6 here is a common slip; the km/h number should always be larger than the m/s number.

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
6 m/s	21.6 km/h
7 m/s	25.2 km/h
8 m/s	28.8 km/h
9 m/s	32.4 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
30 m/s	108 km/h
40 m/s	144 km/h
50 m/s	180 km/h
75 m/s	270 km/h
100 m/s	360 km/h
250 m/s	900 km/h
500 m/s	1,800 km/h
1,000 m/s	3,600 km/h

About the units

Meters per Second: Meters per second is the SI unit of speed, used in science, wind speed and athletics.

Kilometers per Hour: Kilometers per hour is the unit for road speed limits and vehicle speedometers in most countries.

Frequently asked questions

How many kilometers per hour are in 1 meter per second?

1 meter per second equals 3.6 kilometers per hour.

How many meters per second are in 1 kilometer per hour?

1 kilometer per hour equals 0.2777778 meters per second.

How do I convert meters per second to kilometers per hour?

Use the formula km/h = m/s × 3.6.

What is 10 meters per second in kilometers per hour?

10 meters per second equals 36 kilometers per hour.

Related conversions

Factors: NIST SP 811 · SI Brochure · NIST Handbook 44 — Updated October 17, 2026