How do I calculate appliance electricity cost?

Formula: Cost = Watts × Hours ÷ 1000 × Rate per kWh. For example, a 2000W AC running 8 hours at $0.12/kWh costs 2000 × 8 ÷ 1000 × 0.12 = $1.92 per day.

What is a kilowatt-hour (kWh)?

One kWh is 1000 watts running for 1 hour. A 100W bulb running 10 hours uses 1 kWh. A 2000W appliance running 0.5 hours also uses 1 kWh.

Is my data safe with this calculator?

Absolutely. All calculations happen locally in your browser. No data is ever uploaded to any server.

Energy Cost Calculator | Free ToolBase

💡 About the Energy Cost Calculator

This energy cost calculator helps you quickly estimate the electricity cost of your appliances. Simply enter the wattage, daily usage hours, and your local electricity rate to calculate daily, monthly, and yearly costs.

🔍 Formula

Daily Cost = Watts × Hours ÷ 1000 × Rate per kWh

Monthly Cost = Daily Cost × 30

Yearly Cost = Daily Cost × 365

📝 Energy Saving Tips

Raising AC temperature by 1°C saves ~6-8% energy
LED bulbs use ~80% less energy than incandescent
Appliances in standby still consume power — unplug when not in use
Choose high energy-efficiency rated appliances for long-term savings

⚡ Energy Cost Calculator

Calculate Appliance Electricity Cost

📊 Results

💡 About the Energy Cost Calculator

🔍 Formula

📝 Energy Saving Tips

Calculate Appliance Electricity Cost

📊 Results

💡 About the Energy Cost Calculator

🔍 Formula

📝 Energy Saving Tips

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