How Many Watts Does a TV Use: 24, 32, 50, 55, 65 Inch TV and More [With a Data Table]

TV Wattage by Screen Size

Screen size is the fastest way to estimate television wattage when the exact model is unknown. It is only a starting point, though. Two TVs with the same diagonal size can have noticeably different power consumption because of panel technology, brightness, picture mode, local dimming, HDR performance, and energy-saving settings.

Planning ranges are based on current consumer efficiency guidance and model-level testing trends from ENERGY STAR, RTINGS TV power testing, and EnergySage. Exact model consumption can fall outside these ranges.

How Many Watts Does a TV Use Per Hour?

This question is often phrased as “how many watts does a TV use per hour,” but watts already describe the TV's power draw at a particular moment. Energy used over time is measured in watt-hours (Wh) or kilowatt-hours (kWh).

A 100W TV running for one hour consumes:

If the same TV runs for five hours, it consumes 0.50kWh.

How Much Electricity Does a TV Use?

Electricity consumption depends on two numbers: the TV's actual wattage and how long it stays on.

For example, a 95W TV used five hours per day consumes:

• Per day: 95W × 5 ÷ 1,000 = 0.475kWh
• Per 30-day month: 0.475 × 30 = 14.25kWh
• Per year: 0.475 × 365 = about 173.4kWh

Estimated TV Electricity Use at 5 Hours Per Day

These are planning estimates, not specifications for every TV in that size class. Your own viewing hours and actual measured wattage provide a much better result.

How Much Does It Cost to Run a TV?

Once you know your TV's kWh consumption, electricity cost is straightforward:

The U.S. Energy Information Administration's August 2026 Short-Term Energy Outlook places the average U.S. residential electricity price at about 18.2 cents per kWh for 2026. Your rate may be much lower or higher depending on your state, utility, rate plan, and time-of-use pricing.

Estimated Monthly and Annual TV Cost

The table below assumes five hours of TV use per day and an electricity price of $0.182/kWh.

Electricity-price reference: U.S. Energy Information Administration Short-Term Energy Outlook.

TV Energy Consumption Calculator Formula

You do not need a special calculator if you know three numbers: watts, hours per day, and your electricity price.

For a 120W TV used six hours per day at $0.182/kWh:

120 ÷ 1,000 × 6 × 30 × $0.182 = about $3.93 per month.

How Many Amps Does a TV Use?

Most modern televisions draw less than 2 amps from a standard 120V U.S. household outlet. To estimate amps from watts:

For example, a 100W TV connected to a 120V outlet draws about:

100 ÷ 120 = 0.83 amps

If your TV label lists volts and amps but does not list watts, you can reverse the formula:

A label showing 120V and 1.2A indicates an electrical rating of about 144W. Do not automatically assume the TV uses 144W every moment it is on. Nameplate current is often more useful as an upper electrical rating than as an everyday consumption measurement.

For a more detailed explanation, see How Many Amps Does a TV Use?

TV Power Consumption by Display Type

The letters on the box do not tell you exactly how much electricity a TV will use. Screen size, brightness and picture settings can matter as much as the underlying display technology.

For current television efficiency criteria and how brightness, default picture settings and HDR are considered, see ENERGY STAR Television Key Product Criteria.

What Changes a TV's Wattage the Most?

Screen Size

A larger screen has more illuminated area, so power consumption generally increases with size. Efficiency improvements can still make a newer large TV use less electricity than an older smaller set.

Brightness

Brightness is one of the biggest day-to-day variables. A TV running in a bright showroom-style mode can draw significantly more power than the same set in a comfortable home-viewing mode.

Picture Mode

Vivid, Dynamic and Sports modes often prioritize brightness and visual impact. Cinema, Standard and energy-saving modes may reduce power consumption while remaining more comfortable in a normal living room.

HDR Content

HDR can increase power demand because highlights may be driven much brighter than ordinary SDR content. If you mostly watch HDR movies or play HDR games, do not measure your TV only while it is displaying a dark menu screen.

What Is on the Screen

This is especially important for OLED. Dark scenes may use noticeably less electricity than a bright snow scene, hockey game, white webpage or high-brightness animated image.

Automatic Brightness Control

Some televisions use a room-light sensor to lower brightness automatically in darker rooms. ENERGY STAR specifically recognizes automatic brightness control as an energy-saving feature.

Connected Devices

A television may be only part of the load. Soundbars, game consoles, cable boxes, streaming devices, routers and modems can substantially change the total wattage of a home entertainment setup.

Standby and Quick-Start Features

A modern TV is not always electrically “off” when the screen is dark. Network functions, voice assistants, fast-start features and software updates may remain active.

Current ENERGY STAR television criteria limit qualifying models to no more than 0.5W in passive standby and 1.0W in network-active standby. Older TVs, non-certified models or different settings may consume more.

Source: ENERGY STAR Television Key Product Criteria.

How to Find Your TV's Actual Wattage

If you are estimating an electric bill, generator load or portable power station runtime, measuring your own television is better than relying on a generic size chart.

1. Check the Rear Label

Look for watts, input power, volts or amps. If the label gives watts, treat it as an electrical rating unless the manufacturer specifically identifies it as typical on-mode consumption.

2. Read the EnergyGuide Label

The yellow EnergyGuide label is useful for comparing similar TVs. It shows estimated annual energy consumption and annual operating cost using a standardized test and usage assumption.

It is not the same thing as a live watt reading. The FTC television label calculation assumes five hours of on-mode use and 19 hours of standby each day.

3. Check the Manufacturer's Specifications

Some manufacturers publish typical power consumption, maximum power consumption, standby power and annual energy use separately. Make sure you know which number you are reading.

4. Use a Plug-In Watt Meter

This is the most useful approach when battery runtime matters. Plug the TV into the meter, then plug the meter into the wall.

How Much Electricity Does a TV Use in 24 Hours?

If a television stayed on continuously for 24 hours, even a modest wattage would add up. The table below uses an electricity rate of $0.182/kWh.

This is why leaving a television on all day can matter even though a TV is not normally one of the largest electrical loads in a home.

Do TVs Use a Lot of Electricity?

Usually, no. A modern television is a relatively modest household electrical load compared with electric space heating, water heating, clothes drying, cooking appliances or central air conditioning.

A 100W TV running for five hours consumes about 0.5kWh. For comparison, a 1,500W space heater running for only one hour consumes 1.5kWh.

That does not mean TV electricity use is irrelevant. Your total rises when:

• the screen is very large;
• brightness is kept near maximum;
• the TV runs many hours every day;
• HDR or high-brightness content is used frequently;
• a game console, sound system, cable box or other devices run with it;
• the TV is left on when nobody is watching.

For most households, reducing unnecessary viewing hours and extreme brightness settings will matter more than worrying about fractions of a watt in standby.

TV Power Usage vs. Your Full Entertainment System

If you are only estimating your electricity bill, TV wattage by itself may be enough. If you are preparing for a blackout, camping trip or portable power station purchase, it is better to calculate the entire system.

A TV drawing 95W may become a 120W, 180W or 250W setup once internet equipment, a soundbar or game console is turned on.

These are example planning loads, not fixed specifications. Measure your own setup whenever runtime matters.

Can a Portable Power Station Run a TV?

Yes. Most modern TVs are easy loads for a portable power station. Even a 200W television is far below the continuous AC output of many current portable power stations.

The more useful question is usually not “Can it run my TV?” but “How long will it run my complete TV setup?”

Check three things:

Continuous AC Output

The power station's continuous AC output must be higher than the combined load of the television and anything else plugged into the station.

Battery Capacity in Watt-Hours

Watt-hours determine how much stored energy you have. For a low-watt TV, battery capacity usually matters much more than having an extremely high inverter rating.

AC Output Quality

For ordinary household electronics, a pure sine wave AC inverter is the preferred choice. Current UDPOWER S1200 and S2400 specifications list pure sine wave AC output.

For a dedicated compatibility guide, read Can You Run a TV Off a Portable Power Station?

How Long Will a Portable Power Station Run a TV?

For UDPOWER runtime planning, this article uses approximately 90% conversion efficiency:

For example, a 1,190Wh power station running a measured 95W TV:

1,190Wh × 0.90 ÷ 95W ≈ 11.3 hours

This is a planning estimate rather than a guaranteed runtime. Battery state of charge, temperature, inverter overhead, TV brightness, battery age, connected devices and changing screen content can affect actual results.

Estimated TV Runtime: UDPOWER S1200 vs. S2400

Enter your own measured television wattage into the UDPOWER Portable Power Station Runtime Calculator for a more useful estimate.

Recommended UDPOWER Portable Power Stations for TV Backup

A television itself does not require a very large inverter. The main reason to move from a smaller battery to an S1200 or S2400 is longer runtime and the ability to keep other essentials running during the same outage.

UDPOWER S1200: Best Fit for Most Home TV Backup Setups

The S1200 is a practical choice when the goal is not only to power a television, but also to keep Wi-Fi, lights, charging devices or other low-power essentials available during an outage.

Specification	UDPOWER S1200
Battery Capacity	1,190Wh
Rated AC Output	1,200W pure sine wave
Higher-Power Capability	Up to 1,800W through UDTURBO for compatible loads
Battery Chemistry	LiFePO4
AC Outlets	5 on the current grey version
Solar Input	Up to 400W
Weight	Approximately 26.0 lb
UPSPrime Switchover	<10 ms

Example: At a measured 95W TV load, the S1200 provides a mathematical planning estimate of about 11.3 hours using the 90% efficiency assumption. At a 180W complete entertainment load, the estimate is about 6.0 hours.

View UDPOWER S1200

UDPOWER S2400: Best for Longer Outages and More Devices

The S2400 makes more sense when you want longer TV runtime or plan to run several devices at the same time. Its larger battery is the main advantage for low-watt entertainment equipment.

Specification	UDPOWER S2400
Battery Capacity	2,083Wh
Rated AC Output	2,400W pure sine wave
Higher-Power Capability	Up to 3,000W through UDTURBO for compatible loads
Battery Chemistry	LiFePO4
AC Outlets	6
Solar Input	Up to 400W
Weight	Approximately 40.8 lb
UPSPrime Switchover	<10 ms

Example: At a measured 95W TV load, the S2400 gives a mathematical planning estimate of about 19.7 hours. At a 180W TV, internet and audio setup, the estimate is about 10.4 hours.

View UDPOWER S2400

Which One Should You Choose for a TV?

See all current models in the UDPOWER Portable Power Stations collection, or browse portable power stations for home backup and portable power stations for camping and RV use.

How to Reduce TV Electricity Use Without Ruining the Picture

Lower Excessive Brightness

If the TV was left in a showroom-style Vivid or Dynamic mode, reducing brightness or backlight intensity can make a meaningful difference in power consumption.

Use Automatic Brightness Control

If your TV has a room-light sensor, try it before turning the feature off. It can reduce unnecessary brightness in darker rooms.

Turn the TV Off When Nobody Is Watching

Reducing unused screen-on hours usually saves more electricity than obsessing over tiny standby loads.

Use a Sleep Timer

If you regularly fall asleep with the TV on, a sleep timer can prevent several hours of unnecessary operation every night.

Use Efficient Streaming Hardware

If your smart TV can run the streaming app directly, it may eliminate the need to power another device. Avoid using a game console purely as a streaming box when a lower-power option is available.

Compare EnergyGuide Labels When Buying a New TV

Compare annual kWh between models of similar size. A large television will usually consume more energy than a small one, so compare like-for-like rather than choosing only the lowest annual number.

Measure Before an Outage

If you own a portable power station, run a real test before you need it. Measure your normal TV setup, calculate the estimated runtime, then confirm it under your actual viewing conditions.

Frequently Asked Questions About TV Wattage and Electricity Use