Kilometer per Hour to Meter per Second Converter
Speed · unit-converter
Convert Kilometer per Hour to Meter per Second with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations bridge through meters per second with fixed definitions (knot, international mile, Mach 1 = ISA sea level, Beaufort WMO bands at 10 m, vacuum c, plus linear SI and imperial rate units like km/s, fpm, ips, cm/s, and mm/s).
About Kilometer per Hour
Kilometers per hour is common for road speeds, weather reports, and everyday travel outside countries that use miles per hour.
About Meter per Second
Meters per second is the SI derived unit for speed. It is the standard in physics and engineering for expressing velocity.
How to convert kilometers per hour to meters per second
1 kilometer per hour equals 0.2777777777777778 meter per second in this tool (via m/s):
1 kph = (0.2777777777777778 m/s ÷ 1 m/s) mps = 0.2777777777777778 mps
Each kilometer per hour carries 0.2777777777777778 m/s and each meter per second 1 m/s, so one kph equals 0.2777777777777778 ÷ 1 mps.
Let v(kph) be the numeric speed in Kilometer per Hour (kph), and v(mps) in Meter per Second (mps). Then:
v(mps) = v(kph) × (0.2777777777777778 / 1)
Equivalently, divide by how many kph fit into one mps (m/s per mps divided by m/s per kph):
v(mps) = v(kph) ÷ 3.5999999999999996
Examples
Example #1: Convert 10 kph to meter per second
10 kph = 10 kph × (0.2777777777777778/1) mps = 2.7777777778 mps
10 kph = 10 kph ÷ 3.5999999999999996 = 2.7777777778 mps
Example #2: Convert 50 kph to meter per second
50 kph = 50 kph × (0.2777777777777778/1) mps = 13.8888888889 mps
50 kph = 50 kph ÷ 3.5999999999999996 = 13.8888888889 mps
Summary
To convert Kilometer per Hour to Meter per Second, multiply the value in kph by (0.2777777777777778 m/s per kph) / (1 m/s per mps). Equivalently: value_mps = value_kph × (0.2777777777777778 / 1). Numerically, 1 kph equals 0.2777777777777778 mps.
Relationship context
Both Kilometer per Hour and Meter per Second are expressed as fixed multiples of meters per second in this tool. Converting multiplies by the ratio of m/s per kph to m/s per mps, so results stay consistent with SI-based definitions (international mile, knot, feet, etc.).
Conversion tables
| Kilometer per Hour (kph) | Meter per Second (mps) |
|---|---|
| 0.1 | 0.0277777778 |
| 1 | 0.2777777778 |
| 2 | 0.5555555556 |
| 3 | 0.8333333333 |
| 4 | 1.1111111111 |
| 5 | 1.3888888889 |
| 6 | 1.6666666667 |
| 7 | 1.9444444444 |
| 8 | 2.2222222222 |
| 9 | 2.5 |
| Kilometer per Hour (kph) | Meter per Second (mps) |
|---|---|
| 10 | 2.7777777778 |
| 20 | 5.5555555556 |
| 30 | 8.3333333333 |
| 40 | 11.1111111111 |
| 50 | 13.8888888889 |
| 60 | 16.6666666667 |
| 70 | 19.4444444444 |
| 80 | 22.2222222222 |
| 90 | 25 |
| 100 | 27.7777777778 |