Beaufort Scale Converter
Worked example result
| Beaufort number | 4 |
| Description | Moderate breeze |
| Wind speed | 5.56 m/s |
| Summary | 20 km/h = Beaufort 4 — Moderate breeze |
20 km/h is 5.56 m/s — Beaufort 4, a Moderate breeze: dust and loose paper blow, small branches move.
Convert speed to m/s, then match WMO bands: <0.5 = 0 Calm, 0.5–1.5 = 1 Light air, … ≥32.7 = 12 Hurricane · Powered by CalcHub — Beaufort Scale Converter