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Electricity Cost Calculator — Free Online Calculator

Estimates the electricity cost of appliances based on power and usage time.

What is it?

The electricity bill estimator calculates how much an appliance or household costs to run over a given period, based on power rating, hours of use per day, and the electricity tariff.

Formula

Energy (kWh) = Power (W) / 1000 × Hours per day × Days Cost = Energy (kWh) × Tariff ($/kWh)

Example

Washing machine 2,000 W, run 1 hour/day, 30 days, tariff $0.25/kWh. Energy = 2 × 1 × 30 = 60 kWh. Cost = 60 × $0.25 = $15.00.

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