Electrical Suite
Watts to kWh Calculator
Convert active power in watts (W) to energy in kilowatt-hours (kWh).
Enter Parameters
Calculation Result
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Formula & Calculation Steps:
kWh = (Watts × Hours) / 1000
Converting Watts to kWh
Converting Watts to Kilowatt-hours (kWh) allows you to determine the total energy consumed over a period of time. Utility companies bill you based on kWh, so this calculation helps predict your monthly energy costs.
$$ E_{(kWh)} = \frac{P_{(W)} \times t_{(hr)}}{1000} $$
Energy in kWh is Power in Watts times Time in hours, divided by 1000.