- Add Devices — Enter device name, wattage, and daily usage hours.
- Set Rate — Enter your electricity rate in $/kWh.
- Calculate — See daily, monthly, yearly costs and CO₂ emissions.
Electricity Cost Calculator — Estimate Your Energy Bill
The Electricity Cost Calculator helps you estimate how much your appliances and devices cost to run. Add multiple devices with their wattage and daily usage hours, enter your electricity rate, and see daily, monthly, and yearly cost breakdowns plus CO₂ emissions.
How It Works
The formula is simple: kWh = Watts × Hours ÷ 1000. Multiply by your rate to get the cost. The calculator sums all devices for a total household estimate.
Common Device Wattages
- LED Bulb — 10W
- Laptop — 50-100W
- Desktop Computer — 150-300W
- TV — 50-200W
- Air Conditioner — 1000-3000W
- Refrigerator — 100-400W
- Washing Machine — 500-1000W
Features
- Multiple Devices — Add as many as needed.
- Preset Devices — Common appliances pre-loaded.
- CO₂ Tracking — See annual carbon emissions.
- Copy Results — One-click clipboard copy.
Privacy
All calculations run in your browser.