It takes approximately 8 minutes to broil a hamburger. The burger should be broiled for 4 minutes on each side in an oven that's been preheated for 6 to 8 minutes.
A meat thermometer can be used to check for thorough cooking. A rare burger will reach 120 to 125 degrees, a medium-done burger will reach 140 degrees and a well-done burger will reach 160 to 165 degrees.
Lining the bottom of the broiler pan with aluminum foil will make it easier to clean, and care should be taken when removing the burgers from the broiler to avoid spillage. A regular baking pan can be used instead of a broiler pan if need be.