Apex Conversion

Meters per Second to km/h Conversion Chart

Quick-reference chart converting meters per second (m/s) to kilometers per hour (km/h). Covers 0.1–340 m/s — for road speeds, athletics, physics, and engineering.

For a custom value not in this chart, use the interactive Meter per Second to Kilometer per Hour converter.

Meter per Second (m/s)Kilometer per Hour (km/h)
0.1 m/s0.36 km/h
½ m/s1.8 km/h
1 m/s3.6 km/h
1.4 m/s5.04 km/h
2 m/s7.2 km/h
3 m/s10.8 km/h
4 m/s14.4 km/h
5 m/s18 km/h
6 m/s21.6 km/h
7 m/s25.2 km/h
8 m/s28.8 km/h
9 m/s32.4 km/h
10 m/s36 km/h
12 m/s43.2 km/h
15 m/s54 km/h
20 m/s72 km/h
25 m/s90 km/h
27.78 m/s100.008 km/h
30 m/s108 km/h
33.33 m/s119.988 km/h
40 m/s144 km/h
50 m/s180 km/h
60 m/s216 km/h
100 m/s360 km/h
200 m/s720 km/h
340 m/s1224 km/h

Conversion Formula

km/h = m/s × 3.6
m/s = km/h ÷ 3.6

1 m/s = 3.6 km/h  (exact)
1 km/h = 0.27778 m/s

Human speed reference (m/s → km/h):
   1.4 m/s  =  5.0 km/h  (average walking)
   3.0 m/s  = 10.8 km/h  (brisk jog)
   5.5 m/s  = 19.8 km/h  (recreational cycling)
  10.0 m/s  = 36.0 km/h  (elite sprint)
  12.4 m/s  = 44.7 km/h  (Usain Bolt peak)

Physics reference:
  27.78 m/s = 100 km/h  (highway)
  33.33 m/s = 120 km/h  (motorway)
  340 m/s   = 1,224 km/h  (speed of sound)

Quick mental trick: multiply m/s by 3.6 (or × 3.6 = × 4 − × 0.4)

Frequently Asked Questions

How many km/h is 10 m/s?

10 m/s × 3.6 = 36 km/h. Elite sprinters reach approximately 10 m/s during a 100-meter race — equivalent to 36 km/h, about the speed of a medium-speed bicycle.

How many km/h is 30 m/s?

30 m/s × 3.6 = 108 km/h. This is just above typical European highway speeds (100–120 km/h). In physics problems, 30 m/s is a common 'highway speed' reference.

What is walking speed in m/s and km/h?

Average adult walking pace is 1.2–1.6 m/s = 4.3–5.8 km/h. Brisk walking is 1.5–2 m/s = 5.4–7.2 km/h. Competitive racewalking is around 3.5–4 m/s = 12.6–14.4 km/h.

How fast is 100 m/s in km/h?

100 m/s × 3.6 = 360 km/h. No street car reaches 100 m/s; supercars top out around 330–350 km/h (91.7–97.2 m/s). Jet aircraft cruise at 220–270 m/s (792–972 km/h).

How do scientists and engineers typically express speed?

SI physics and engineering use m/s as the base unit. Automotive industries use km/h (Europe, Asia) or mph (US, UK). Aviation uses knots for airspeed and km/h for ground speed on charts. Weather services use m/s, km/h, knots, or mph depending on country and application.

Related Converters

Meter per Second → Kilometer per HourKilometer per Hour → Meter per SecondMile per Hour → Kilometer per HourKilometer per Hour → Mile per Hour

Related Charts

km/h to Meters per Second Conversion ChartMiles Per Hour to Kilometers Per Hour Chart

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Need a custom value?

This chart covers common values. For any number, use the interactive converter.

Use the interactive converter →

All conversion values are calculated using internationally recognized conversion factors. Results are provided for general informational purposes — verify critical values independently. Read our full disclaimer.