Live Solar UV Index & Vitamin D Sun Exposure Calculator
Calculate the exact safe sun exposure time needed for optimal Vitamin D synthesis (1,000–2,000 IU) without sunburn based on your Fitzpatrick skin type and live solar radiation.
☀️ Solar & Skin Parameters
UVI
Low (0-2)
Moderate (3-5)
High (6-7)
Very High (8-10)
Extreme (11+)
Estimated Vitamin D Produced
1,500 IU
Maximum Burn Time (Erythema)
35 Minutes
WHO UV Index Classifications & Protection Rules
| UV Range | Risk Level | Sun Protection Guidance |
|---|---|---|
| 0 – 2 | Low | Minimal sun protection required. Safe for extended outdoor activity. |
| 3 – 5 | Moderate | Wear sunglasses, hat, and apply SPF 30+ if staying out >45 min. |
| 6 – 7 | High | Seek shade during midday (11am-3pm). Apply SPF 50 sunscreen. |
| 8 – 10 | Very High | Extra protection required. Unprotected skin can burn in under 20 minutes. |
| 11+ | Extreme | Take full precautions. Avoid midday direct sun exposure completely. |