Sunscreen Protection Time Calculator
Estimate how long sunscreen protects you by multiplying your unprotected burn time by the SPF value.
CalcSimpler Examples
- Burn time 10 min, SPF 30 ⇒ 300 min
- Burn time 15 min, SPF 20 ⇒ 300 min
FAQ
What is burn time?
The time it takes for your skin to redden without protection.
Does water affect protection time?
Yes, swimming or sweating can reduce effectiveness.
Should I reapply sooner?
Yes, reapply at least every two hours regardless of SPF.
Is SPF protection linear?
The multiplication provides an estimate; real protection may vary.
Additional Information
No additional information available.
CalcSimpler