How many squats you should do a day will depend on your needs and goal. There’s no magic number that works for everyone. If your main goal is to improve leg strength or build leg muscle, a general rule of thumb would be workout the muscle group 2-3 times a week, with a day's rest between working the same muscle group twice. If you’re a beginner, we suggest starting out with bodyweight squats, also known as air squats, then progressing to a weighted variation once you’re comfortable and ready, and then looking to increase the weight gradually as you get stronger to see results.