ConvBolt — Unit ConverterKilometers per hour to Meters per second Converter
Converting kilometers per hour to meters per second is a multiplication by a fixed factor: 1 km/h = 0.2777778 m/s. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.
Because one kilometer per hour works out to 0.2777778 m/s, the meter per second is the much smaller unit of the two: a figure given in meter per second always carries a smaller number than the same measurement in kilometer per hour. A chart drawn in km/h can hide that, so check which label the axis uses before you compare two readings.
In engineering, kinematic figures quoted in kilometers per hour often have to be restated in meters per second before they can be compared with a manufacturer curve.
The conversion factor used here is 0.2777778 m/s per kilometer per hour (7 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 km/h a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 3.6 km/h per m/s, the exact reciprocal, so a round trip through both pages returns your original number.
Kilometers per hour to Meters per second formula
Use this formula to convert any kilometer per hour value to meters per second:
Worked example: 100 km/h × 0.2777778 = 27.77778 m/s.
Kilometers per hour to Meters per second conversion table
| Kilometers per hour (km/h) | Meters per second (m/s) |
|---|---|
| 0.5 km/h | 0.1388889 m/s |
| 1 km/h | 0.2777778 m/s |
| 2 km/h | 0.5555556 m/s |
| 5 km/h | 1.388889 m/s |
| 10 km/h | 2.777778 m/s |
| 20 km/h | 5.555556 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 |
How to convert kilometers per hour to meters per second
Multiply the kilometer per hour value by 0.2777778 to get the equivalent in meters per second. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.
If you need the opposite direction, use the Meters per second to Kilometers per hour converter instead of dividing by hand; both pages use the same source factors. For every other km/h conversion in one place, see the km/h conversion hub.
Frequently asked questions
How many meters per second are in 1 kilometer per hour?
1 kilometer per hour = 0.2777778 m/s.
What is 100 kilometers per hour in meters per second?
100 km/h = 27.77778 m/s.
Is converting kilometers per hour to meters per second the same as meters per second to kilometers per hour?
No — the direction changes the multiplier. The reverse conversion (1 m/s = 3.6 km/h) is on the Meters per second to Kilometers per hour page.
Related conversions
Try the ConvBolt Unit Converter for any other speed unit, browse the Speed conversions, or read our conversion guides.