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How much each appliance uses, how to read your electricity bill and how to pay less.

Bar chart: an air conditioner uses 294 kWh a month, a water heater 91, a fridge 66, a TV 14 and an LED bulb less than 2

Appliance energy use chart

Energy use chart for 70 appliances: watts, kWh per hour and kWh per month for fridges, A/C, water heaters, lights and more, and how to work out yours.

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Drawing of a mini-split: the indoor unit on a bedroom wall and the outdoor unit outside the home, joined by a conduit through the wall

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How much an air conditioner uses

How much electricity a 9,000, 12,000, 18,000 or 24,000 BTU air conditioner or mini-split uses: watts, kWh per month, inverter or not, and how to use less.

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Drawing of an energy label with a scale of letters from green A to red G, a black arrow with the letter C, a box showing 152 kWh and a QR code; on the right, the old European A+++ to D scale next to the new A to G scale

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How to read an energy label

Learn to read the energy label on your appliances: what the letter means, where to find the kWh you pay for, and how labels work in the EU, U.S. and Latin America.

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White four-socket power strip with a separate switch for each socket, its cable coiled on a wooden floor

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Standby power: appliances off but plugged in

How much electricity appliances use when off but plugged in, which use the most on standby according to official measurements, and what’s worth unplugging.

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White LED bulb screwed into a plastic bulb holder next to an outside wall

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LED bulbs: how much they save and which to choose

How much you save by switching to LED, how to choose a bulb by lumens rather than watts, how to read its label and how many years it lasts, with examples.

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Plug-in energy monitor plugged into a wall socket, its display showing the watts used by the connected appliance

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Calculate your appliances’ usage

Learn how to calculate how many kWh each appliance uses and what it costs you per month: the official formula, where to find the wattage and a worked example.

Read article: Calculate your appliances’ usage →