Calculate the electricity cost of running any appliance based on wattage, usage hours, and your electricity rate.
Calculate the electricity cost of running any appliance based on wattage, usage hours, and your electricity rate.
Cost = (Watts × Hours) / 1000 × Rate
100W bulb for 10 hrs at $0.12/kWh = $0.12/day, $43.80/year.
Enter your values in the fields above and click "Calculate" to get instant results. All calculations happen in your browser — nothing is sent to any server.
What is Electricity Cost Calculator?
Calculate the electricity cost of running any appliance based on wattage, usage hours, and your electricity rate.
What formula does this use?
This calculator uses: Cost = (Watts × Hours) / 1000 × Rate
Is this calculator free?
Yes! All calculators on CalcNest AI are 100% free with no account required.
Is my data safe?
Absolutely. All calculations run locally in your browser. We never store or transmit your input data.