Light Pollution Calculator
Calculate the environmental impact of outdoor lighting, sky glow contribution, and energy waste.
Outdoor Lighting
Light Characteristics
Location
Bortle Class
Light Output
Energy & Cost
Wildlife Impact
Relative impact score based on light intensity, color, and shielding.
Recommendations
Install fully shielded (full cutoff) fixtures
Switch to warm-colored LEDs (2700K or less)
Use timers or motion sensors to reduce operating hours
Consider reducing the number of outdoor lights
Use lower wattage bulbs - often sufficient for safety
Dark Sky Tips
Use only what you need: More light does not equal more safety
Point lights down: Fully shielded fixtures prevent sky glow
Use warm colors: 2700K or warmer reduces ecological impact
Use timers/sensors: Light only when and where needed
Help us improve!
How would you rate the Light Pollution Calculator?
Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
Formula Source: Standard Mathematical References
by Various