Chicken thighs are cooked when they reach an internal temperature of 165°F (73.9°C). If you are using a meat thermometer to check, ensure the thermometer makes contact with only the meat and not the bone to get the most accurate reading. If you don't have a thermometer, the juices should run clear when you cut into the chicken. If the juices are red or pink, it needs to be cooked a bit longer.