How many meters per second are in a kilometer per hour?

1 km/h = 0.277778 m/s. To convert any amount, multiply by 0.277778.

How do you convert kilometers per hour to meters per second?

Multiply the number of kilometers per hour by 0.277778 to get meters per second. The formula is shown in the "How it's calculated" section above.

Where does the conversion factor come from?

It's a published international standard. Most are defined exactly by international agreement (e.g. 1 inch = 25.4 mm exactly, 1 lb = 0.45359237 kg exactly). Source citations are listed under the formula above.

Unit converter — Velocity

Kilometers per hour to meters per second converter

Convert kilometers per hour (km/h) to meters per second (m/s). Source-cited conversion factor, exact to the displayed precision.

Results are mathematically exact for the displayed precision. How we calculate.

How it's calculated

Convert kilometers per hour to meters per second— the formula

Kilometers per hour convert to meters per second by multiplying by the published conversion factor. The factor below is exact to the precision shown, sourced from the citation under the formula.

m/s = km/h × 0.277778

km/h = m/s × 3.6

m/s: SI derived (m × s⁻¹). 1 km/h = 1000/3600 m/s; 1 mph = 0.44704 m/s exactly; 1 knot = 1852/3600 m/s exactly (international nautical mile).

Questions

Frequently asked questions

How many meters per second are in a kilometer per hour?
1 km/h = 0.277778 m/s. To convert any amount, multiply by 0.277778.
How do you convert kilometers per hour to meters per second?
Multiply the number of kilometers per hour by 0.277778 to get meters per second. The formula is shown in the "How it's calculated" section above.
Where does the conversion factor come from?
It's a published international standard. Most are defined exactly by international agreement (e.g. 1 inch = 25.4 mm exactly, 1 lb = 0.45359237 kg exactly). Source citations are listed under the formula above.