How Much Electricity Does a TV Use? Watts and Cost by Screen Size

How many watts does a TV use?

Watt draw scales mainly with screen area, then with panel technology and picture brightness. A 24-inch LED set uses roughly 25-35W, a 32-inch 30-50W, a 43-inch 55-75W, a 50-inch 60-100W, a 55-inch 70-110W, a 65-inch 100-150W and a 75-85 inch set 150-250W. OLED panels light each pixel individually instead of using a backlight, so they use less on dark scenes and more on bright, high-contrast content; a 55-inch OLED averages roughly 90-140W across mixed viewing. QLED and premium local-dimming LED sets sit between the two, typically 80-130W at 55 inches. Plasma sets, discontinued after 2014, were in a different league at 300-500W for a 50-inch screen, which is why an old TV really can be worth replacing.

• 24-inch LED: 25-35W
• 32-inch LED: 30-50W
• 43-inch LED: 55-75W
• 50-inch LED: 60-100W
• 55-inch OLED: 90-140W
• 65-inch LED/QLED: 100-150W
• 75-85 inch LED: 150-250W
• 50-inch plasma (pre-2014): 300-500W

How do you calculate your own TV's cost?

The formula is the same for every appliance: kWh = (watts × hours) ÷ 1,000, then multiply by your rate per kWh. A 75W television watched 5 hours a day is (75 × 5) ÷ 1,000 = 0.375 kWh a day, or about 11.3 kWh a month and 137 kWh a year. At $0.16/kWh that is $0.06 a day, $1.80 a month and $21.90 a year. At the UK cap of 26p/kWh the same set costs about 10p a day, £2.93 a month and £35 a year, on top of the daily standing charge you pay regardless. Your set's exact wattage is printed on the rear panel label or in the manual specifications; enter it in the calculator on the home page with your own rate to get a figure that matches your bill instead of a national average.

How much does a TV cost per hour and per month?

Using the standard formula, a 50-inch LED TV at 75W run for 5 hours a day uses 0.375 kWh, costing about $0.06 a day and roughly $1.80 a month at $0.16/kWh , genuinely one of the cheapest appliances in the home to run per hour of use. A 65-inch OLED at 130W for the same 5 hours a day uses 0.65 kWh, costing about $0.10 a day and $3.12 a month. Even a household running two or three TVs several hours a day rarely adds more than $10-$15 a month collectively, which is why televisions are almost never the main driver of a high electricity bill, despite often being blamed for it. Enter your TV's wattage, found on the rear panel label or in the manual, into the calculator on the home page for an exact figure.

• 32-inch LED (~40W): about $0.006/hour, $1/month at 5 h/day
• 50-inch LED (~75W): about $0.012/hour, $1.80/month at 5 h/day
• 55-inch OLED (~110W): about $0.018/hour, $2.64/month at 5 h/day
• 65-inch LED/QLED (~130W): about $0.021/hour, $3.12/month at 5 h/day
• 75-inch LED (~180W): about $0.029/hour, $4.32/month at 5 h/day

How much does TV standby power cost?

Modern TVs sold in the US and EU are subject to standby power limits, generally under 0.5W, so a switched-off but plugged-in TV now adds only a negligible amount to a bill, unlike older sets from the 2000s that could draw 3-5W constantly. The bigger hidden draw comes from features left active in standby, such as quick-start mode, which keeps some internal circuitry powered to reduce boot time and can raise standby draw to 3-10W on some models. Smart TV features like voice assistants and always-listening microphones, along with a connected soundbar or set-top box left on, are more likely to add meaningful standby cost than the TV panel itself.

Does brightness or picture mode change the bill?

The single biggest controllable factor in a TV's real-world power draw is picture brightness, particularly on OLED and other self-emissive displays. Many TVs ship in a 'Vivid' or 'Dynamic' store-demo picture mode that maximizes backlight and brightness to stand out on a showroom floor, and this mode alone can increase power draw by 30-50% over a calibrated 'Movie' or 'Standard' mode with little practical benefit in a normally lit room. Enabling ambient light sensing, so the TV automatically dims in a darker room, typically saves a further 10-20% over the course of an evening's viewing without a noticeable difference in picture quality.

How can you reduce TV running costs?

• Switch out of 'Vivid' or 'Dynamic' picture mode; it can use 30-50% more power than 'Standard' or 'Movie' mode
• Enable the ambient light or eco sensor so brightness adjusts automatically to the room
• Turn off 'quick start' or 'instant on' features if standby cost matters more to you than a few seconds of startup time
• Use the TV's sleep timer to avoid it running unattended overnight
• Turn off a soundbar or connected set-top box at the wall when not in use rather than leaving them on standby all day

What if the TV is left on all day?

Leaving a set running as background noise changes the arithmetic, though it still stays modest. A 75W 50-inch TV left on for 12 hours a day uses 0.9 kWh a day, about $4.32 a month and $53 a year at $0.16/kWh. Running the same set a full 24 hours a day costs about $8.64 a month and $105 a year. A 65-inch at 130W left on 24/7 reaches roughly $15 a month and $182 a year , the point at which a TV finally becomes a bill item worth acting on. A sleep timer or the TV's built-in "no signal / no activity" auto-off, which most sets enable by default after four hours, removes almost all of that waste.

TV watts and running cost at $0.16/kWh (US average), 5 hours viewing per day

How much can you save, and how fast?

Frequently asked questions

How much electricity does a TV use per hour?

A typical 50-inch LED TV uses about 75W, or 0.075 kWh per hour, costing roughly $0.012 per hour at $0.16/kWh. A large 65-75 inch set uses 0.13-0.18 kWh per hour, about $0.02-$0.03.

How many watts does a TV use?

Between about 30W and 250W for modern flat screens: roughly 30-50W at 32 inches, 60-100W at 50 inches, 100-150W at 65 inches and 150-250W at 75-85 inches. OLED sets sit at the upper end of their size band on bright content.

How much electricity does a TV use per month?

At 5 hours of viewing a day and $0.16/kWh, about $1.00 a month for a 32-inch set, $1.80 for a 50-inch, $3.12 for a 65-inch and $4.32 for a 75-inch. UK households at 26p/kWh pay roughly 1.6 times those figures.

How much does it cost to run a TV for a year?

About $22 a year for a 50-inch LED and $38 a year for a 65-inch, based on 5 hours of daily viewing at the US average rate. Left on 24 hours a day, a 65-inch set costs roughly $182 a year.

Do smart TVs use more electricity?

The smart platform itself adds very little while the screen is on; the panel dominates. It matters in standby, where voice assistants, quick-start and always-connected features can lift draw from under 0.5W to 3-10W, worth $1-$4 a year.

Does OLED use more electricity than LED?

On bright content, yes, typically 10-30% more at the same screen size, because OLED pixels emit light individually rather than using a shared backlight. On dark scenes OLED can actually use less.

Is it expensive to leave a TV on standby?

Modern TVs draw under 0.5W in standard standby, adding only cents a year. 'Quick start' mode can raise this to 3-10W, adding roughly $1-$4 a year if left enabled continuously.

Does a bigger TV cost much more to run?

A 75-inch TV typically draws more than double a 32-inch model, but because televisions are low-wattage devices overall, the difference is usually only $3-$4 a month even with several hours of daily viewing.

Does picture mode really affect electricity use?

Yes. Switching from a 'Vivid' or 'Dynamic' demo mode to 'Standard' or 'Movie' mode can cut a TV's power draw by 30-50%, since store-demo modes maximize backlight brightness.

FAQ - TV Cost

How much does a 85W tv cost per hour?

At $0.16/kWh, 0.09 kW × $0.16 = $0.01 per hour.

How much does it cost to run for 5 hours a day?

$0.01 × 5 hours = $0.07 per day, or $2.04 per month over 30 days.

Does a 85W tv use a lot of electricity?

At 5 hours per day, it uses 0.43 kWh daily and 12.75 kWh monthly. Whether that is a lot depends on usage time and appliance efficiency, so compare the estimate with a plug-in meter or your utility data.

How much does this tv cost to run for a year?

At 5 hours per day and $0.16/kWh, the estimated yearly electricity cost is $24.82 for 365 days. Actual cost changes with the measured wattage, operating time, and local electricity rate.

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