Electricity Bill Calculator

Summary

Add your appliances with wattage and daily usage hours to estimate your monthly electricity bill at any rate per kWh.

How it works

1. Enter the rate your utility charges per kWh (check your bill — typically $0.10–$0.20).
2. Add each appliance: give it a name, wattage, and how many hours per day it runs.
3. The calculator converts watts to kWh: (watts × hours/day × 30 days) ÷ 1000.
4. Each row shows daily cost, monthly cost, and monthly kWh usage.
5. The summary at the bottom totals all appliances into a single estimated monthly bill.

Use cases

• Find which appliances drive up your electric bill the most.
• Compare the energy cost of an old appliance vs. an efficient replacement.
• Estimate monthly costs before buying a new air conditioner, EV charger, or space heater.
• Budget household electricity expenses when moving to a new home.
• Check whether solar panels or efficiency upgrades will pay off.
• Break down shared-apartment electricity costs by appliance.

Frequently Asked Questions