Everyday life

Sunscreen Calculator

Estimate sunscreen reapplication and supply.

Hours outdoors

Reapply every

Oz per application

Calculated Output

Sunscreen needed 3

Formula: oz = hours ÷ interval × oz per application

Step-by-Step Breakdown

1. Values used:

2. Hours outdoors = 6

3. Reapply every = 2

4. Oz per application = 1

6. Sunscreen needed = Hours outdoors / Reapply every = 6 / 2 = 3

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The math behind it

ounces = hours ÷ reapplication interval × oz per full-body application.

6 h, every 2 h, 1 oz → 3 oz.

Full body?

About 1 oz covers an average adult — a shot-glass amount.