Kilometres per Hour to Metres per Second
Type a value in kilometres per hour to see it in metres per second. It works both ways: type in the metres per second box to convert back.
Formula
To convert kilometres per hour to metres per second, divide by 3.6 (the same as multiplying by 0.2777777778).
1 km/h = 0.277777777778 m/s and 1 m/s = 3.6 km/h.
Kilometres per hour to metres per second table
| Kilometres per hour | Metres per second |
|---|---|
| 10 km/h | 2.777778 m/s |
| 20 km/h | 5.555556 m/s |
| 30 km/h | 8.333333 m/s |
| 50 km/h | 13.88889 m/s |
| 60 km/h | 16.66667 m/s |
| 80 km/h | 22.22222 m/s |
| 90 km/h | 25 m/s |
| 100 km/h | 27.77778 m/s |
| 110 km/h | 30.55556 m/s |
| 120 km/h | 33.33333 m/s |
| 130 km/h | 36.11111 m/s |
| 160 km/h | 44.44444 m/s |
| 200 km/h | 55.55556 m/s |
Worked examples
20 km/h in metres per second
20 km/h
5.555556 m/s
20 × 0.2777777778 = 5.555555556
90 km/h in metres per second
90 km/h
25 m/s
90 × 0.2777777778 = 25
160 km/h in metres per second
160 km/h
44.44444 m/s
160 × 0.2777777778 = 44.44444444
About Kilometres per Hour to Metres per Second
This converter turns kilometres per hour into metres per second as you type, and works the other way too: type in the metres per second box to convert back. To convert kilometres per hour to metres per second, divide by 3.6 (the same as multiplying by 0.2777777778). For example, 20 km/h is 5.555556 m/s, and 90 km/h is 25 m/s.
Speed limits in the UK are in miles per hour, most other countries use kilometres per hour, and sailors and pilots use knots, so travellers and drivers convert speeds often. Both units have exact definitions, so the converter gives an exact result, rounded only for display. Use the table below for common values, or set the decimal places to round the answer for a form or a label.
How to use Kilometres per Hour to Metres per Second
- Type the amount in kilometres per hour in the first box.
- Read the answer in metres per second in the second box and in the result line below.
- To convert the other way, type in the metres per second box instead, or use the swap button to open the metres per second to kilometres per hour page.
- Choose a number of decimal places if you need a rounded figure, then copy the result line.
Common uses
- Reading a wind speed forecast
- Comparing running, cycling or boat speeds
- Physics and engineering homework
- Driving abroad or in a hire car with a different speedometer
Frequently asked questions
How many metres per second are in one kilometre per hour?
There are 0.2777777778 metres per second in one kilometre per hour. This figure is exact, because both units have fixed definitions.
How do I convert kilometres per hour to metres per second?
To convert kilometres per hour to metres per second, divide by 3.6 (the same as multiplying by 0.2777777778). For example, 160 km/h is 44.44444 m/s.
How do I convert metres per second to kilometres per hour?
Going the other way, multiply by 3.6. The metres per second to kilometres per hour converter does this for you.
What is 120 km/h in metres per second?
120 km/h is 33.33333 m/s.
Why do ships and aircraft use knots?
A knot is one nautical mile per hour, and a nautical mile matches one minute of latitude. That makes distances on charts easy to work out, so knots became the standard at sea and in the air.