km/h to m/s
Convert km/h to m/s instantly, with a reference table.
km/h to m/s at a glance
km/h to m/s is a free online converter you can use right now to convert km/h to m/s instantly, with a reference table โ no account, no install and no usage limit. It runs entirely inside your browser, so whatever you enter stays on your own device.
- Price
- Free โ no trial, no paid tier, no watermark
- Sign-up
- Not required
- Where it runs
- In your browser โ nothing is uploaded to a server
- Works on
- Chrome, Safari, Firefox and Edge โ desktop, tablet and phone
- Category
- Unit Conversions
km/h to m/s conversion table
| km/h (km/h) | m/s (m/s) |
|---|---|
| 1 km/h | 0.277778 m/s |
| 2 km/h | 0.555556 m/s |
| 3 km/h | 0.833333 m/s |
| 5 km/h | 1.388889 m/s |
| 10 km/h | 2.777778 m/s |
| 25 km/h | 6.944445 m/s |
| 50 km/h | 13.88889 m/s |
| 100 km/h | 27.77778 m/s |
| 500 km/h | 138.8889 m/s |
| 1000 km/h | 277.7778 m/s |
About km/h to m/s
Convert km/h to m/s instantly, with a reference table of common values. The factor is exact: 1 km/h = 0.2777778 m/s.
The reverse, needed to bring a road or wind speed into a physics calculation โ almost every formula involving velocity expects metres per second.
Kilometres per hour combines the metric distance unit with the hour, an ancient time division that the metric system never successfully replaced โ decimal time was attempted during the French Revolution and abandoned. It is the speed unit on road signs and vehicle speedometers in most of the world. A brisk walk is about 5 km/h, and typical motorway limits sit between 100 and 130 km/h.
Worked through with real numbers: 10 km/h is 2.778 m/s, 50 km/h is 13.889 m/s, 100 km/h is 27.778 m/s.
As for the other side of the conversion: sound travels at about 343 m/s in air, and light at 299,792,458 m/s exactly.
Every speed unit is a distance divided by a time, so converting between them means converting the distance and the time together. That is why the factors are less memorable than simple length conversions.
How to use km/h to m/s
- Enter the number of km/h you want to convert.
- The equivalent in m/s appears instantly โ there is no button to press.
- Check the reference table for common km/h to m/s values.
Frequently asked questions
How do I convert km/h to m/s?
Multiply your km/h figure by 0.2777778 to get m/s โ or type a value above and read the answer straight off.
How many m/s are in one km/h?
1 km/h = 0.2777778 m/s.
When would I need to convert km/h to m/s?
The reverse, needed to bring a road or wind speed into a physics calculation โ almost every formula involving velocity expects metres per second.
What is a km/h, exactly?
Kilometres per hour combines the metric distance unit with the hour, an ancient time division that the metric system never successfully replaced โ decimal time was attempted during the French Revolution and abandoned. A brisk walk is about 5 km/h, and typical motorway limits sit between 100 and 130 km/h.
Where is the m/ actually used?
It is the standard in physics and engineering, and in scientific meteorology for wind speed. Almost every physics formula involving velocity expects it. Sound travels at about 343 m/s in air, and light at 299,792,458 m/s exactly.
Is there anything tricky about speed conversions?
Every speed unit is a distance divided by a time, so converting between them means converting the distance and the time together. That is why the factors are less memorable than simple length conversions.
Is this converter accurate?
Yes. It uses the exact standard factor of 1 km/h = 0.2777778 m/s, and the conversion runs in your browser so nothing is uploaded.