๐จ Beaufort Wind Scale Converter
| Beaufort number | Wind speed (km/h) | Description |
|---|---|---|
| 0 | 0โ0 | Calm |
| 1 | 1โ5 | Light air |
| 2 | 6โ11 | Light breeze |
| 3 | 12โ19 | Gentle breeze |
| 4 | 20โ28 | Moderate breeze |
| 5 | 29โ38 | Fresh breeze |
| 6 | 39โ49 | Strong breeze |
| 7 | 50โ61 | Near gale |
| 8 | 62โ74 | Gale |
| 9 | 75โ88 | Strong gale |
| 10 | 89โ102 | Storm |
| 11 | 103โ117 | Violent storm |
| 12 | 118+ | Hurricane |
Enter a wind speed (km/h, m/s, or mph) to determine the Beaufort wind force scale number โ the internationally used 13-level scale (0โ12) based on the standard adopted by the World Meteorological Organization (WMO) and others.
How to use
- Enter a wind speed value.
- Select the unit (km/h, m/s, or mph).
- The matching Beaufort number and description are shown.
FAQ
What is the Beaufort wind force scale?
An international standard scale devised in 1805 by Royal Navy officer Francis Beaufort, ranking wind force from 0 (calm) to 12 (hurricane) across 13 levels. It's still used today by organizations like the World Meteorological Organization (WMO).
How are the level boundaries determined?
Each level has a defined wind speed range (in km/h), with a corresponding description such as "calm", "breeze", "gale", or "hurricane" assigned to that range.
I heard it looks different at sea versus on land?
The Beaufort scale was originally defined based on how a sailing ship's sails behaved at sea, but land-based indicators (like how trees sway or smoke drifts) were later added for each level too. This tool determines the level from wind speed alone.