TV Electricity Cost Calculator: Watts and Cost by Screen Size
Watts and cost by screen size for LED, QLED and OLED. Adjust the wattage, runtime and your own electricity rate below — every figure updates instantly in your browser, and nothing you type is sent anywhere.
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How this cost is calculated
The formula is kWh = watts ÷ 1000 × hours, then cost = kWh × your rate per kWh. Standing charges and tiered or time-of-use pricing are billed separately by your supplier, so treat these numbers as the marginal cost of running this appliance rather than a full bill.
For the full breakdown with regional price tables, read the detailed guide, or estimate your whole household on the home electricity bill calculator.
Frequently asked questions
How many watts does a TV use?
Roughly 40W for a 32-inch set, 85W for a 50-inch LED, 120W for a 65-inch QLED and up to 200W for a large OLED.
Does standby power on a TV matter?
Modern sets draw 0.5-2W on standby, about $0.70-$2.80 a year — small, but it adds up across a whole house of devices.
Is OLED more expensive to run than LED?
Slightly, at the same size: OLED brightness varies with picture content, typically 20-40% more than an equivalent LED.