Electricity Cost Calculator
Enter appliance power, quantity, hours per day, days used, and your kWh tariff to estimate daily, period, and monthly electricity costs locally.
Appliances
Combined total
- Daily consumption
- 9.6 kWh
- Period consumption
- 288 kWh
- Daily cost
- $9.12
- Total cost
- $273.60
- Monthly estimate
- 288 kWh
- Monthly estimate
- $273.60
Appliance breakdown
| Appliance name | Period consumption | Total cost |
|---|---|---|
| Air conditioner | 288 kWh | $273.60 |
Totals update as you edit each appliance.
How to estimate electricity cost
Enter appliance power, daily usage, billing period, quantity, and tariff to estimate kWh consumption and cost for one or more devices.
How it is calculated
Power is converted to kilowatts, multiplied by the number of appliances and hours used per day, then multiplied by days and the tariff per kWh.
- Formula
kWh = kW * quantity * hours per day * days
Multiple appliances
Each appliance is calculated separately and then added to the combined total, so you can compare one device with the whole period estimate.
Common uses
- Estimate the cost of an air conditioner, heater, computer, or appliance.
- Compare several devices before changing usage habits.
- Forecast a partial period or a 30-day monthly estimate.
Calculation notes
All values are calculated in your browser; appliance names and costs are never uploaded.
FAQ
What tariff should I enter?
Use the price you pay per kWh from your electricity bill, including taxes or fees if you want a closer estimate.
Can I add more than one appliance?
Yes. Add as many rows as needed and the tool calculates both individual and combined totals.
Is the monthly cost exact?
It is an estimate based on 30 days at the same daily usage and tariff.