Online Tool Store
Wind Speed Converter
Convert wind speed between km/h, mph, m/s, knots, and ft/s, see the matching Beaufort force, and copy the complete result locally in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
- km/h
- mph
- m/s
- knots
- ft/s
Beaufort scale
How the Wind Speed Converter works
- Enter a wind speed value and pick its starting unit — km/h, mph, m/s, or knots.
- The converter instantly shows the equivalent speed in km/h, mph, m/s, knots, and ft/s.
- It also matches the speed to its Beaufort force (0-12) and name, and lets you copy every value at once.
FAQ
Does this tool upload my data?
No. The conversion and Beaufort lookup run entirely in your browser and do not upload data or call external services.
Can I use it without an account?
Yes. The page is a no-sign-up browser tool — enter a value and the results update immediately.
How accurate are the conversions?
Conversions use standard factors (1 mph = 1.60934 km/h, 1 knot = 1.852 km/h, 1 m/s = 3.6 km/h, 1 ft/s = 1.09728 km/h) and results are shown to one decimal place, which is precise enough for weather, sailing, and general reference use.
What is the Beaufort scale and how is the force determined?
The Beaufort scale is a 0-12 classification of wind speed, from 'Calm' (Force 0) to 'Hurricane force' (Force 12), originally devised for observing wind effects at sea. The converter matches your entered speed (converted to km/h) against the standard Beaufort speed bands and shows the matching force number and name.
What units does the converter support?
You can enter a speed in km/h, mph, m/s, or knots, and the tool always shows the result in all five units at once: km/h, mph, m/s, knots, and ft/s.
How we compare
| Feature | Online Tool Store | Weather app | Manual conversion |
|---|---|---|---|
| Five common units plus Beaufort at once | ✓ | ✗ | ✗ |
| Copyable conversion summary | ✓ | Not stated | ✗ |
| Works for any value, not just current weather | ✓ | ✗ | ✓ |
A weather app only shows the current wind speed in one unit. The Wind Speed Converter converts any value across every common unit, plus the matching Beaufort force.