Everyday Life Calculators

Sunscreen Amount Calculator

Estimate how much sunscreen you need for a trip and how many bottles to pack.

Total ounces needed —

Bottles to pack —

About the Sunscreen Amount Calculator

Dermatologists recommend about one ounce (roughly a shot glass full) of sunscreen for a full-body application on an average adult, reapplied every couple of hours in the sun.

Formula: Total Ounces Needed = Applications per Day × Ounces per Application × Days; Bottles Needed = Total Ounces ÷ Bottle Size, rounded up.

Use this before a beach trip or vacation to make sure you pack enough sunscreen for everyone.