Following a 1.5-hour local flight, the pilot was returning to his home airfield. Due to inbound traffic to the airport, the pilot circled once to the west and descended for the runway. About 8 miles from the runway, he lowered the landing gear and set 10° flaps. While on the base leg, the engine did not respond to the throttle inputs. The pilot switched fuel tanks, turned on the auxiliary fuel pump, and increased the mixture. Engine power was not restored, and the pilot notified the tower that the airplane had a total loss of engine power. Traffic was too heavy on a nearby road, so the pilot performed a forced landing to a vacant field. The airplane touched down, and the pilot applied brakes. The airplane traveled for about 90 ft, hit a ditch, and nosed over. The pilot reported that he thought that he had about 45 gallons of fuel before takeoff, but he told the Federal Aviation Administration inspector that he had miscalculated his fuel. Only residue fuel was found during recovery of the airplane. The circumstances of the accident are consistent with a total loss of engine power due to fuel exhaustion.