Occupancy Sensor Savings Calculator

Calculate how much occupancy sensors will save based on your space’s actual occupancy patterns throughout the day. Select a space type to load a realistic profile, then adjust each time slot.

Lighting details
Hours lights are currently on
Occupancy by time period – click to adjust
Sensor installation cost
Hardware + installation per sensor

Please enter fixtures and wattage.

Annual savings with sensors
$0
0
kWh saved/year
0
Payback period
0%
Energy reduction
Hours on comparison
Without sensors
With sensors
Hours saved
Total load
Avg occupancy
Effective hours saved/day
Annual kWh before
Annual kWh after
Total sensor cost
10-year net savings
Recommended sensor type
Shop occupancy sensors on Amazon

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The calculators and tools on LightingCalc.lighting are provided for general guidance and informational purposes only. Results are estimates based on standard formulas and the values you enter — they do not constitute professional engineering, electrical, or architectural advice. Always verify calculations with a qualified professional before making decisions for any safety-critical, code-compliance, or commercial application. LightingCalc.lighting makes no representations or warranties as to the accuracy or completeness of any result, and accepts no liability for errors, omissions, or any outcomes arising from reliance on this information.