Electricity Usage Monitor

Add your home appliances, enter wattage and daily hours of use, and see your daily and monthly kWh consumption and electricity cost. Identify the biggest energy consumers at a glance.

Settings

Electricity rate (per kWh)

Currency symbol

Days per month

Appliances

Appliance

Watts (W)

Hours/day

Qty

—

Daily kWh

—

Monthly kWh

—

Daily Cost

—

Monthly Cost

Biggest Energy Consumers

Full Breakdown

Appliance	Watts	Hrs/day	Qty	kWh/day	kWh/month	Cost/month

How It Works

1. Watts to kWh

Kilowatt-hours = Watts × Hours per day ÷ 1000. A 100 W bulb run for 10 hours uses 1 kWh.

2. Monthly projection

Daily kWh is multiplied by days per month (default 30) to project your monthly consumption and cost.

3. Biggest consumers

Appliances are ranked by monthly kWh. Items at the top are your best targets for cutting electricity bills.

All calculations run in your browser. No data is sent to a server. Wattage values are typical averages; check your appliance label or manual for the exact figure.

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