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.
Click the sections of the model to indicate which parts of your body will be exposed. The red color represents exposed skin, and the blue represents covered skin. Next, enter your height, weight, and age. Press "Calculate" and your results will appear as teaspoon values in the table below.