Electricity Cost Calculator

Calculate how much an appliance costs to run per day, month and year from its wattage and your electricity rate.

Runs instantly in your browser — results update as you type.

How much does it cost to run an appliance?

Cost = watts × hours ÷ 1,000 × price per kWh. A 1,000 W heater used 4 hours a day uses 4 kWh daily; at 0.15 per kWh that is 0.60 a day, about 18 a month and 219 a year.

Typical wattages

ApplianceWatts
LED bulb8–12
Laptop30–70
TV60–150
Fridge (average)100–200
Air conditioner900–2,000
Kettle2,000–3,000

Frequently asked questions

Where do I find the wattage?

On the label or power adapter; a plug-in power meter gives the real use.

Why is my bill higher?

Fridges and ACs cycle on and off, and bills include fixed charges and taxes.

Is it free?

Yes.