Sunscreen Usage Calculator

Calculate the amount of sunscreen needed for proper protection.

Coverage Area

Hours Outdoors

Bottle Size (oz)

Bottle Cost ($)

Formula

Daily Usage = (Body Areas x 0.11 oz) x (Hours / 2 reapplications)

How much sunscreen should I apply?

Use about 1 ounce (a shot glass full) for full body coverage.

How often should you reapply sunscreen?

Reapply every 2 hours, or immediately after swimming or sweating.

Does higher SPF mean better protection?

SPF 30 blocks 97 percent of UVB rays. SPF 50 blocks about 98 percent.

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