Lighting Calculator
Calculate
Formula
Lumens = Sq Ft × Lumens per Sq Ft (varies by room type). Bulbs = Total Lumens ÷ 800.
Frequently Asked Questions
How many lumens do I need per room?
Kitchens and bathrooms need 70-80 lumens/sq ft, living rooms 40-50, bedrooms 30-40, and offices 60-70.
How do lumens relate to watts?
A standard 60W-equivalent LED bulb produces about 800 lumens while using only 8-10 watts.
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