Wind Speed Converter

Convert wind speed between km/h, mph, m/s, knots, and the Beaufort scale instantly.

About This Tool

Convert between meters per second, kilometers per hour, miles per hour, nautical knots, and the Beaufort scale using exact SI factors and WMO Beaufort thresholds. Results update automatically as you type or change units.

Converter

Wind Speed Value

From Unit

To Unit

Converted Result

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Beaufort: integers 0–12. Other units: non-negative numbers. Reference unit: m/s.

Wind Speed Units Explained

m/s — Meters per second SI unit for wind in science and many forecasts.

km/h — Kilometers per hour Common on road signs; 1 km/h = 1/3.6 m/s.

mph — Miles per hour Used in the US and UK; 1 mph = 1609.344 m / 3600 s.

kn — Knots Aviation and marine; 1 kn = 1852 m / 3600 s.

Bft — Beaufort scale Force 0–12 from calm to hurricane; maps to m/s ranges at 10 m height.

How to Use

Enter a value and choose From Unit and To Unit.
Results update automatically. Copy copies value + unit.
Clear resets to 30 km/h → mph.