UV Exposure Calculator
UV Exposure
Estimate safe sun exposure time based on UV index and skin type.
Formula
Base Minutes = Skin MED x 10 / UV Index; Protected = Base x SPF
Frequently Asked Questions
What UV index requires sunscreen?
Apply sunscreen when the UV index is 3 or higher.
How does SPF extend safe exposure?
SPF 30 means you can stay 30 times longer than without it.