Sunscreen Calculator

Estimate sunscreen reapplication and supply.

Hours outdoors

Reapply every

Oz per application

Sunscreen needed 3

Formula: oz = hours ÷ interval × oz per application

Step-by-step with your numbers:

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

Did we solve your problem today?

Estimate sunscreen you need for a day outside.

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.