what measures wind speed

Wind speed is measured with an instrument called an anemometer , most commonly a cup anemometer with three or four cups that spin in the wind.

Quick Scoop

What measures wind speed?

• The standard instrument for measuring wind speed is an anemometer.

• The classic weather-station version is a cup anemometer: 3–4 small cups on a vertical spindle that rotate as the wind blows.

• As the cups spin faster, the device converts that rotation rate into a wind speed value.

Other modern wind-speed tools

• Ultrasonic anemometers use high‑frequency sound between sensors to calculate how fast the air is moving.

• Laser Doppler anemometers use laser light and the Doppler effect to determine wind speed very precisely, often in research or industry.

• Handheld digital anemometers are popular with sailors, drone pilots, and hikers because they are small and portable.

How wind speed is reported

• Wind speed is usually given in meters per second (m/s), kilometers per hour (km/h), miles per hour (mph), or knots (kt).

• Meteorological agencies often prefer m/s or knots, while everyday forecasts and apps commonly show mph or km/h.

Information gathered from public forums or data available on the internet and portrayed here.