A garbage to fertilizer conversion system for converting garbage to fertilizer. The garbage to fertilizer conversion system generally includes a processing machine that separates the garbage into compostable and non-compostable materials. A magnetic separator removes ferromagnetic materials from the compostable material. An auger assembly moves and discharges the compostable material to form a pile. A heater is located under the pile to heat the pile and form a composted material. A three stage screen separates the composted material into three sizes. A dryer receives the composted material and discharges a dried composted material. A trommel screen separates the dried composted material into a small sized material useable as fertilizer and a medium sized material useable as potting soil.