175 meters. According to the relevant information query, the longest wind turbine blade is 175 meters, and the diameter of the blade is the diameter of the wind wheel, which is closely related to the power of the wind turbine. The main shapes of wind turbine blades are 126, 110, 114, etc., and the corresponding blade sizes are 62 m, 54 m and 56 m.
The largest wind turbine blade is 80 meters long. The largest wind turbine in the world is in Maade, Denmark. It is called V164 and was manufactured and installed by Mitsubishi Vestas Offshore Wind Company. This wind turbine is 220 meters high and is equipped with three giant blades. Each blade is 80 meters long, which is longer than a Boeing 747.