Electricity Usage Calculator
Estimate electricity consumption and cost based on your appliances' power requirements and usage.
Electricity Usage Calculator - Estimate Your Power Consumption
Calculate how much electricity your appliances use and estimate your energy costs based on your personal usage patterns and local electricity rates.
Why Calculate Your Electricity Usage?
- Budget Planning - Estimate your monthly and yearly electricity costs
- Energy Savings - Identify which appliances consume the most power
- Appliance Comparison - Compare efficiency of different appliances
- Solar Planning - Help size solar systems based on your consumption
- Environmental Impact - Understand your carbon footprint from electricity use
How to Use the Electricity Calculator:
- Select an appliance type or choose "Define your own"
- Enter the appliance's power rating in watts
- Set the capacity percentage (how much power it actually uses)
- Enter how many hours per day you use the appliance
- Input your local electricity price per kWh
- Click "Add Appliance" to add it to your calculation
- Repeat for all your appliances to see total consumption
Understanding the Results:
Daily Consumption
Shows how many kilowatt-hours (kWh) your appliances use each day.
Cost Breakdown
Calculates daily, monthly, and yearly costs based on your electricity rate.
Appliance List
Detailed view of each appliance's contribution to your total consumption.
Customizable Inputs
Adjust any value to see how changes affect your consumption and costs.
Common Appliance Power Ratings:
| Appliance | Typical Power (Watts) | Notes |
|---|---|---|
| Refrigerator | 100-200 | Varies by size and efficiency |
| LED Light Bulb | 5-15 | Much less than incandescent |
| Laptop | 50-100 | Depends on usage |
| Air Conditioner | 1000-3500 | Window units typically 1000-1500W |
| Microwave | 600-1200 | Higher when cooking |
| Washing Machine | 300-500 | More during heating cycles |
Frequently Asked Questions
How accurate is this calculator?
The calculator provides estimates based on your inputs. Actual consumption may vary based on appliance age, efficiency, and exact usage patterns.
Where can I find my appliance's power rating?
Check the appliance's label, manual, or specifications online. Many appliances list their power in watts (W).
What's the difference between watts and kilowatt-hours?
Watts (W) measure power (energy per second), while kilowatt-hours (kWh) measure energy consumption over time (power × time).
How do I find my electricity rate?
Check your electricity bill for the cost per kWh. Rates vary by location and provider.