Wondering how to check face shape? Use a mirror or photo and measure key areas — forehead, cheekbones, jawline, and face length. Compare proportions to see if your face is oval, round, square, heart, diamond, or oblong. Look for your widest points and jaw angle to confirm. You can also use online tools like Face Shape to instantly analyze your face shape. Knowing it helps you choose the best hairstyles, glasses, and makeup for a balanced, flattering look.