Electricity Bill Calculator: Units (kWh) and Cost of an Appliance

Find how many units (kWh) an appliance uses and what it costs to run, from its wattage and hours of use.

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How to use the electricity bill calculator

1. Type your numbers in the boxes (pick your currency or units if asked).
2. The answer updates as you type: no button to press.
3. Copy the result, or share it on WhatsApp with one tap.

Questions

How many units does a 1.5 ton AC use?

A 1.5 ton AC uses about 1,500–1,800 watts, so 8 hours a day is roughly 12–14 units a day, less with a 5-star inverter model.

Is my data private?

Yes. Everything happens inside your own browser: nothing you type or choose is uploaded to us or anyone else.

Is it free?

Completely free, with no sign-up, no watermark and no limit on how many times you use it. Light ads keep the site running.