Speed Converter
Convert speed units including kilometers per hour, miles per hour, meters per second, and knots. Instant results.
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1 m/s = 3.6 km/h
Quick Reference: m/s → km/h
| m/s | km/h |
|---|---|
| 1 | 3.6 |
| 2 | 7.2 |
| 5 | 18 |
| 10 | 36 |
| 25 | 90 |
| 50 | 180 |
| 100 | 360 |
| 500 | 1800 |
| 1000 | 3600 |
Popular conversions
Speed conversion is useful for driving (km/h to mph), aviation (knots), and sports (meters per second). Most countries use km/h; the US and UK use mph. Nautical miles per hour (knots) are used in aviation and maritime. 100 km/h ≈ 62 mph, 1 knot ≈ 1.852 km/h. Enter any value and get the result in real time.
Common conversions: 1 km/h = 0.621 mph, 1 mph = 1.609 km/h, 1 knot = 1.852 km/h. Use the converter above for any value. Driving: speed limits, car specs. Aviation: flight speed, wind. Maritime: boat speed. Sports: running, cycling. Science: velocity, physics. Swap units to convert in reverse. Copy the result with one click. Supported units: km/h, mph, m/s, knots, ft/s. Regulatory manuals sometimes cite meters per second alongside knots—once you lock one value here, you can paste consistent numbers into maintenance logs or incident briefings without juggling spreadsheets offline. E-scooter share programs and cycling power meters often export m/s internally—convert those exports before sharing social pace screenshots.
How to convert speed units
- Open the speed converter — Go to the Pare Unit speed converter and select your source and target units (e.g., km/h to mph).
- Enter your value — Type the speed you want to convert. The result updates instantly.
- Copy or swap — Copy the result or swap units to convert in the opposite direction.
FAQ
How many mph is 100 km/h?
100 km/h equals approximately 62.14 mph. Multiply km/h by 0.621 for mph.
What is 1 knot in km/h?
1 knot equals 1.852 km/h. Knots are used in aviation and maritime.
Is the speed converter free?
Yes. Free on this page, with limits noted per tool. All conversions run in your browser.
Does it work offline?
Yes. Once the page loads, conversions work offline. No data is sent to any server.
Which speed units are supported?
Kilometers per hour, miles per hour, meters per second, knots, feet per second, and more. See the full list in the converter.