How Long Do Maggots Live?

Emma Forsberg/CC-BY 2.0

The lifespan of maggots, or fly larvae, varies based on the temperature. At optimum temperatures of 95 to 100 degrees Fahrenheit, maggots complete their development and become adults in four to 13 days. At lower temperatures of 53 to 62 degrees Fahrenheit, development takes 14 to 30 days.