How Long to Cook Chicken Breast on the Grill
The cook time for chicken breast on the grill will vary depending on the size of each piece, but on average, you can expect that it will take about 20 minutes. This assumes that you're grilling your chicken over medium heat, about 400 to 450 degrees on most gas grills. Grill each side for 10 minutes and then let it rest off of the heat for 5 minutes before serving. You can double-check that it's done by checking it with a meat thermometer to ensure that the chicken has reached an internal temperature of 165 degrees.