How Much Sunscreen Do I Need?

Internationally agreed upon procedures state that sunscreens only achieve their advertised SPFs when applied with a thickness of 2 mg per square centimeter of skin. Follow the instructions below to see exactly how much sunscreen you need to apply based on your body’s surface area.

Please enter your information below

Age    years
Height    ft. inches
Weight    lbs.
Type   
 Lotion     Spray
Unit   
 Imperial     Metric
Next

Click the sections of the model to indicate which parts of your body will be exposed. Red indicates exposed skin, and blue indicates covered skin.

Select All
Front
Back
Calculate

Spray

Head/Neck
0 sec
Front Torso
0 sec
Back Torso
0 sec
Right Leg
0 sec
Left Leg
0 sec
Right Arm
0 sec
Left Arm
0 sec

Apply

Head/Neck
0 tsp
Front Torso
0 tsp
Back Torso
0 tsp
Right Leg
0 tsp
Left Leg
0 tsp
Right Arm
0 tsp
Left Arm
0 tsp