km/h to m/s Converter
Type a value in kilometres per hour and read the equivalent in metres per second immediately, with the exact factor and common values.
How km/h to m/s works
Convert kilometres per hour to metres per second instantly. 1 km/h = 0.2777778 m/s, with a live result and a quick reference table. Everything happens inside this page: the tool reads your input, runs the calculation or conversion locally, and hands the result back to you. Nothing is transmitted, because there is no backend to transmit it to.
That design choice is deliberate. Most free tool sites upload your files to a server, process them there, and quietly keep a copy. Toolcin cannot do that — the site is a set of static files. If your connection dropped the moment the page finished loading, every tool would still work.
What one km/h is in m/s
The conversion is a single multiplication by 0.277777778, so the result is only as rounded as the display. Going the other way divides by the same figure: one m/s is 3.599999997 km/h.
No intermediate rounding happens. A value entered with four decimals comes back with the same precision, which is what makes the factor trustworthy for anything that accumulates error.
Values people ask for
| km/h | m/s |
|---|---|
| 1 km/h | 0.277777778 m/s |
| 2 km/h | 0.555555556 m/s |
| 5 km/h | 1.38888889 m/s |
| 10 km/h | 2.77777778 m/s |
| 25 km/h | 6.94444445 m/s |
| 50 km/h | 13.8888889 m/s |
| 100 km/h | 27.7777778 m/s |
Where this pair comes up
Physics problems use metres per second while road signs show kilometres per hour.
Dividing by 3.6 is exact: 100 km/h is 27.8 m/s.
Good to know
- Works offline once loaded, including on flights and in locked-down networks.
- No file size limit beyond your device's own memory.
- Free to use, with no account and no usage counter.
- Results are produced locally, so they are not logged or shared with anyone.
Questions
What is the conversion factor?
1 km/h = 0.2777778 m/s, from the international definition.
Can I convert backwards?
Divide by 0.2777778 to go the other way.
Is the factor exact?
It is the standard definition for this pair, applied without intermediate rounding. Only the displayed result is rounded.
Can I convert m/s back to km/h?
Yes — divide by 0.277777778 instead of multiplying, or use the reverse page if one exists.
Keep going
More converters tools
t to lb
Convert tonnes to pounds instantly. 1 t = 2204.623 lb, with a live result and a quick reference table.
Open toollb to t
Convert pounds to tonnes instantly. 1 lb = 0.0004535924 t, with a live result and a quick reference table.
Open toolct to g
Convert carats to grams instantly. 1 ct = 0.2 g, with a live result and a quick reference table.
Open toolg to ct
Convert grams to carats instantly. 1 g = 5 ct, with a live result and a quick reference table.
Open toolbbl to L
Convert barrels to litres instantly. 1 bbl = 158.9873 L, with a live result and a quick reference table.
Open toolL to bbl
Convert litres to barrels instantly. 1 L = 0.006289811 bbl, with a live result and a quick reference table.
Open tool