Electrical Load Calculator
| Appliance | Watts | Hrs/Day | kWh/Day |
|---|
$/kWh
Daily Usage
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Daily kWh
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Monthly kWh
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Annual kWh
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Daily Cost
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Monthly Cost
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Annual Cost
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How kWh Is Calculated
kWh = Watts × Hours ÷ 1,000. A 1,500 W space heater running 8 hours uses 12 kWh per day. At $0.13/kWh the US average, that's $1.56/day or about $47/month.
Typical Appliance Wattages
Refrigerator 150 W | Washing machine 500 W | Electric dryer 5,000 W | Central AC 3,500 W | LED bulb 10 W | Desktop PC 200 W | TV 100 W.
Reducing Your Bill
Heating and cooling typically account for 50% of a home energy bill. Upgrading to a smart thermostat, sealing drafts, and switching to LED lighting are the highest-impact, lowest-cost improvements.