Pull your hair back so your face outline is visible
Stand in front of a mirror in good lighting
Use a washable marker or lipstick to trace your face shape on the mirror
Compare the widest part of your forehead, cheekbones, and jawline
Measure your forehead width
Measure your cheekbone width
Measure your jawline width
Measure your face length from hairline to chin
Check whether your face is longer than it is wide
Check whether your forehead, cheekbones, and jawline are similar in width
Check whether your jawline is sharp, rounded, or square
Check whether your chin is pointed, rounded, or broad
Compare your measurements to common face shapes
Oval: face length longer than width, balanced proportions
Round: face length and width similar, soft jawline
Square: forehead, cheekbones, and jawline similar, strong jawline
Heart: wider forehead, narrower chin
Diamond: widest at cheekbones, narrow forehead and jawline
Rectangle: face longer than width, similar widths, longer shape
Triangle: narrower forehead, wider jawline
Use a side-profile photo if you want a second check
Take several photos with hair pulled back and compare the outline