m/s to km/h Converter

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Convert meters per second to kilometers per hour using the exact factor 1 m/s = 3.6 km/h. Practical for translating physics-class velocity readings, wind-speed reports and athletic split times into the everyday km/h speedometer scale. Anchors: 5 m/s = 18 km/h (jogging), 12 m/s = 43.2 km/h (gale-force wind), 28 m/s = 100.8 km/h (hurricane Cat-1 threshold). Browser-local.

Meter per second (m/s)
Kilometer per hour (km/h)

Meter per second (m/s) → Kilometer per hour (km/h)

Quick reference table

Meter per second (m/s)Kilometer per hour (km/h)
10 m/s36 km/h
25 m/s90 km/h
50 m/s180 km/h
60 m/s216 km/h
80 m/s288 km/h
100 m/s360 km/h
120 m/s432 km/h
150 m/s540 km/h
200 m/s720 km/h

Glossary

Meter per second (m/s)

The meter per second is the SI derived unit of speed, defined as the distance of one meter travelled in one second. It is the standard unit in physics and engineering. Useful conversions: 1 m/s = 3.6 km/h = 2.2369 mph = 1.9438 knots. Wind speeds, projectile velocities and free-fall figures are typically reported in m/s in scientific contexts.

Kilometer per hour (km/h)

A kilometer per hour is the everyday speed unit used on road signs, vehicle speedometers and weather forecasts in nearly every country except the United States and the United Kingdom. 1 km/h = 0.2778 m/s = 0.6214 mph. Highway speed limits are commonly 100–130 km/h; a marathon world record pace is about 21 km/h.

Metric / SI speed

In the metric system, speed is reported in meters per second (scientific) or kilometers per hour (everyday). The relation is exact: 1 m/s = 3.6 km/h. Most countries use km/h on road signs and speedometers; m/s appears in physics, engineering, weather data and athletics where fine-resolution timing matters.

Imperial / US Customary speed

In the United States, the United Kingdom and a few other countries, road speeds are reported in miles per hour (mph). US engineering also uses feet per second (ft/s). 1 mph = 1.6093 km/h = 0.4470 m/s. Maritime and aviation worldwide use knots (1 knot = 1.852 km/h), independent of the metric/imperial divide.

Related tools

km/h to m/s
Convert km/h to m/s — 1 km/h ≈ 0.2778 m/s (divide by 3.6)
m/s to mph
Convert m/s to mph — 1 m/s ≈ 2.2369 mph
m/s to Knots
Convert m/s to knots — 1 m/s ≈ 1.9438 kn
Speed Converter
Convert speed — m/s, km/h, mph, knots, ft/s, mach