Formula.metres per second = km/h ÷ 3.6.
Relationship.1 km/h = 0.277778 m/s.
Worked example. 100 km/h = 27.778 m/s.
km/h to m/s Converter.
1 km/h = 0.277778 m/s, so 100 km/h = 27.778 m/s. Type any value below to convert km/h to m/s instantly.
Quick
km/h
Copied ✓ m/s
Copied ✓ Reference Table
| km/h | mph | m/s | ft/s | kn |
|---|---|---|---|---|
| 0.1 | 0.0621371192 | 0.0277777778 | 0.0911344415 | 0.0539956803 |
| 1 | 0.6213711922 | 0.2777777778 | 0.9113444153 | 0.5399568035 |
| 10 | 6.213712 | 2.777778 | 9.113444 | 5.399568 |
| 100 | 62.137119 | 27.777778 | 91.134442 | 53.99568 |
| 1000 | 621.371192 | 277.777778 | 911.344415 | 539.956803 |
| 10000 | 6213.7119 | 2777.7778 | 9113.4442 | 5399.568 |
| 100000 | 62137.1192 | 27777.7778 | 91134.4415 | 53995.6803 |
How to convert km/h to m/s
km/h to m/s conversion table
| km/h | m/s |
|---|---|
| 1 | 0.2777777778 |
| 3.6 | 1 |
| 5 | 1.388889 |
| 10 | 2.777778 |
| 15 | 4.166667 |
| 18 | 5 |
| 20 | 5.555556 |
| 25 | 6.944444 |
| 30 | 8.333333 |
| 36 | 10 |
| 40 | 11.111111 |
| 50 | 13.888889 |
| 60 | 16.666667 |
| 70 | 19.444444 |
| 72 | 20 |
| 80 | 22.222222 |
| 90 | 25 |
| 100 | 27.777778 |
| 110 | 30.555556 |
| 120 | 33.333333 |
| 130 | 36.111111 |
| 140 | 38.888889 |
| 150 | 41.666667 |
| 200 | 55.555556 |
| 300 | 83.333333 |
Frequently Asked Questions
How do I convert km/h to m/s?
Divide by 3.6. For example, 100 km/h ÷ 3.6 ≈ 27.78 m/s. The 3.6 comes from 1,000 metres per kilometre divided by 3,600 seconds per hour.
What is 36 km/h in m/s?
Exactly 10 m/s. Multiples of 3.6 km/h give whole numbers of metres per second, which makes 18, 36, 54 and 72 km/h handy reference points.
Why do physics problems use m/s?
Because the metre and the second are SI base units, so m/s slots directly into equations for acceleration, momentum and energy without any conversion factor. Mixing km/h into those formulas is a classic source of errors.
How fast is 1 m/s?
3.6 km/h, or about 2.24 mph — a slow walking pace. A brisk walk is roughly 1.5 m/s and a sprinter peaks above 10 m/s.