UV Index Exposure Calculator
Calculate safe sun exposure time based on UV index and skin type.
Know when to apply sunscreen and seek shade.
Safe Exposure Time
UV Index measures the strength of ultraviolet radiation from the sun. Higher values mean faster skin damage.
Safe exposure time depends on your skin type and the current UV index:
Safe Minutes = (200 × Skin Type Factor) / (3 × UV Index)
UV Index Scale:
- 0–2: Low — minimal risk
- 3–5: Moderate — wear sunscreen
- 6–7: High — reduce midday exposure
- 8–10: Very High — extra protection needed
- 11+: Extreme — avoid sun exposure
Skin Types (Fitzpatrick Scale):
- Type I: Very fair — always burns (factor: 2.5)
- Type II: Fair — burns easily (factor: 3)
- Type III: Medium — sometimes burns (factor: 4)
- Type IV: Olive — rarely burns (factor: 5)
- Type V: Brown — very rarely burns (factor: 8)
- Type VI: Dark — almost never burns (factor: 15)