Fitzpatrick fotodano score
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
The Fitzpatrick Photodamage Score calculator estimates skin damage risk from sun exposure using the Fitzpatrick skin type scale (1-6) and exposure level. The formula (6 − type) × exposure calculates vulnerability: lower skin types (1-3) and higher exposure values yield greater risk. It helps prioritize sun protection for fair-skinned individuals or those with frequent outdoor activities.
The Fitzpatrick scale categorizes skin based on pigmentation and sun reaction. This tool multiplies (6 minus skin type) by exposure (e.g., 1 for low, 3 for high). Results guide daily sunscreen recommendations, especially in high-UV regions. For example, type 2 with exposure 3 yields (6−2)×3 = 12, indicating moderate photodamage risk.
Use this tool as an initial guide, not a substitute for dermatologist advice. It doesn't account for genetic factors or combined environmental stressors (e.g., pollution). Always consult a specialist for personalized protection strategies, especially if you have a history of skin cancer or use photosensitizing medications.
Frequently asked questions
How do I determine my Fitzpatrick skin type?
Use the 1-6 scale based on natural pigmentation and sun reaction. Type 1 burns easily, type 6 tans but never burns.
Is solar exposure measured in hours or UV index?
Assign a subjective value: 1 (minimal), 2 (moderate with protection), 3 (prolonged unprotected).
What precautions should I take with high scores?
Avoid peak sun hours (10am-4pm), apply SPF 50+ every 2 hours, and wear protective clothing and wide-brimmed hats.
Does the calculator account for altitude or climate?
No. Adjust further for high-altitude areas or regions with intense UV radiation.