How big are the wheels on a 747?

The Boeing 747 has a total of 16 wheels: four main landing gear wheels on each side and two nose landing gear wheels at the front. The main landing gear wheels typically have a diameter of about 25 inches (63.5 cm), while the nose gear wheels are slightly smaller, with a diameter of approximately 20 inches (50.8 cm). These large wheels are designed to support the aircraft's weight during takeoff, landing, and ground operations.