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Electricity Cost Calculator
Calculate power consumption and electricity costs for your appliances. Check estimated costs by day, month, and year.
US average residential rate: ~$0.12-0.15/kWh
Appliance 1
📖 How to Use
- Enter your electricity rate per kWh (US average: ~$0.12)
- Enter the power consumption (W) of each appliance
- Enter average daily usage hours
- Click 'Add' to include more appliances
- Click Calculate to see daily/monthly/yearly costs
✨ Features
- ✓Calculate multiple appliances at once
- ✓View costs by day, month, and year
- ✓Calculate power consumption (kWh) per appliance
- ✓Visual cost distribution
- ✓Common appliance presets
- ✓Supports multiple currencies
📐 Formula
Electricity Cost = (Watts × Hours ÷ 1000) × Price per kWh💡 How It Works
- •Energy consumption (kWh) is calculated by multiplying power (W) by time (h) and dividing by 1000.
- •Example: A 1500W air conditioner used for 8 hours = 1500 × 8 ÷ 1000 = 12 kWh
- •Monthly usage is daily usage multiplied by 30 days.
- •Electricity rates vary by region, time of use, and consumption tier.
- •This calculator uses a flat rate. Actual costs may vary with tiered pricing.
- •Standby power matters too. TVs, computers, etc. consume power even when off.
❓ FAQ
Q. What is kWh?
A. kWh (kilowatt-hour) is a unit of energy. Using a 1kW (1000W) device for 1 hour equals 1 kWh.
Q. What is the average electricity rate?
A. In the US, residential rates average $0.12-0.15/kWh but vary significantly by state and utility.
Q. Why is air conditioning so expensive?
A. AC units consume 1000-2000W or more. Running for 8 hours uses 12-16 kWh, costing $1.50-2.00/day.
Q. How much is standby power?
A. Standby power is typically 1-10W per device. For an entire home, this can add 5-10 kWh/month ($0.50-1.50).
Q. How can I reduce electricity costs?
A. Use energy-efficient appliances, unplug standby devices, set AC to 78°F (26°C), and switch to LED lighting.
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