⚡ Electricity Cost Calculator
Estimate daily, monthly, and yearly energy costs of any appliance.
*Calculations assume 30 days per month and 365 days per year.
How to Use This Calculator
Enter three simple values:
- Power – the wattage of your appliance (usually found on the label).
- Daily usage – how many hours per day you run the appliance.
- Electricity rate – the price you pay per kilowatt-hour (kWh). Check your utility bill or use your local average.
The calculator instantly shows energy consumption and costs for a day, a typical month (30 days), and a full year.
Electricity Cost Formula
The calculation is straightforward:
Cost = Energy (kWh) × Rate per kWh
Example: A 1500W space heater used 4 hours/day at $0.12/kWh:
Daily energy = 1500 × 4 ÷ 1000 = 6 kWh → Daily cost = 6 × 0.12 = $0.72
Monthly cost ≈ $21.60, Yearly cost ≈ $262.80.
Why Calculate Electricity Costs?
Knowing how much each appliance costs to run helps you identify energy hogs, plan budgets, and make informed decisions about upgrades (e.g., to energy‑efficient models). Even small changes, like switching to LED bulbs, can add up to significant savings.
5 Quick Tips to Lower Your Electricity Bill
- Unplug idle devices – many electronics draw power even when turned off.
- Use a programmable thermostat to heat or cool only when needed.
- Run full loads in washing machines and dishwashers.
- Switch to LED lighting – they use up to 75% less energy.
- Regular maintenance – clean filters and coils keep appliances efficient.
⚡ This calculator is for educational purposes; actual bills may vary due to taxes, fees, and usage patterns.
