How Many Watts Does a TV Use? 2026 Power Consumption Guide

If you're wondering how many watts a TV uses, the short answer is that most modern TVs use about 30 to 200+ watts while turned on. A typical mid-sized LED TV often uses around 100 watts, but the real number depends on screen size, display technology, brightness, resolution, and connected devices.

In this guide, we explain average TV wattage by screen size and display type, explore the factors that affect electricity consumption, show how to calculate running costs, and explain how to choose the right backup power solution to keep your TV and other essential electronics running during outages.

Quick Answer

A typical TV uses around 30 to 200+ watts depending on size and display technology. Small LED TVs may consume only 20–50 watts, while large 4K OLED, QLED, or mini-LED models can exceed 200 watts. A 100-watt TV running four hours daily uses about 12 kWh per month.

TV Wattage by Size and Screen Type

Bigger screens generally draw more electricity, but screen type and settings shift the number quite a bit.

• Small TVs (24-32 inches) usually use 20 to 50 watts, making them a low-demand choice for bedrooms, dorms, and RVs. A 32-inch LED TV often falls around 30 to 50 watts; watched three hours daily at 40 watts, it uses only about 3.6 kWh per month.
• Mid-size TVs (40-55 inches) commonly use 45 to 120 watts, the most common range for family rooms and streaming setups. A 55-inch TV typically uses 70 to 120 watts in standard viewing—95 to 100 watts is a reasonable planning number, though brighter modes and HDR content push it higher.
• Large TVs (65-85 inches) often use 90 to 300+ watts, especially bright 4K, 8K, QLED, mini-LED, or OLED models. A 65-inch TV commonly uses 90 to 160 watts, while a 75-inch may use 150 to 250+ watts in bright modes. Don't assume the average is the maximum—large TVs can spike higher during bright HDR scenes, sports broadcasts, or high-refresh gaming.
• LED, OLED, QLED, and plasma differences: LED/LCD TVs are generally efficient due to LED backlighting. OLED TVs can be efficient in dark scenes since individual pixels dim or turn off, but bright full-screen images increase draw. QLED and mini-LED TVs get very bright, which looks great in sunny rooms but may use more electricity. Older plasma and CRT TVs are much less efficient than current flat screens.

What Affects How Much Electricity a TV Uses?

Screen size is only one factor. Brightness, picture settings, smart features, and connected accessories can all affect real-world energy consumption.

• Screen size and resolution: Larger screens need more energy to illuminate more display area. A 4K or 8K TV may also need more processing power than an HD model, especially with upscaling or high refresh rates enabled, though the difference is most noticeable on large premium displays.
• Brightness, HDR, and picture mode: Brightness is one of the biggest factors in TV energy use—"Vivid," "Dynamic," or store-demo modes drive the screen brighter than necessary for home viewing. HDR content also increases draw with brighter highlights and deeper contrast. Try Standard, Cinema, Filmmaker, or Eco mode to save energy without a dull picture.
• Smart features and connected gear: Smart TVs use power for Wi-Fi, apps, and background updates, but your full entertainment setup—streaming sticks, soundbars, game consoles, cable boxes, Blu-ray players, routers, and bias lighting—can draw much more than the screen alone. Include everything running simultaneously when estimating cost or backup runtime.
• Standby mode (phantom power): Standby lets the TV respond to the remote or receive updates. For one modern TV this is usually minor, but across several TVs, consoles, and cable boxes, idle power adds up—a smart power strip can help cut it.

Understanding Watts, Kilowatt-Hours, and TV Energy Cost

Watts measure the rate of power consumption at a given moment—a 100-watt TV draws 100 watts under those conditions, and wattage shifts with the picture (a dark scene uses less than a bright sports broadcast).

Kilowatt-hours (kWh) measure energy over time; one kWh equals 1,000 watts used for one hour. A 100-watt TV running 10 hours uses 1 kWh, while a 50-watt TV needs 20 hours for the same energy. Your electric bill uses kWh because utilities charge for total energy consumed, not the power draw at one moment—watts are like speed, kWh are like distance traveled. A 200-watt TV run for one hour uses the same energy as a 100-watt TV run for two.

How to Calculate Your TV's Power Use and Running Cost

Use this formula: Daily kWh = TV watts × hours used per day ÷ 1,000.

For a 100-watt TV used 4 hours per day: 100 × 4 ÷ 1,000 = 0.4 kWh per day. Then, Cost = kWh × electricity rate—at $0.17/kWh, that's about $0.07 per day.

Even large TVs are usually modest compared with HVAC systems or water heaters, but multiple TVs and long viewing hours add up. Check your electric bill for your actual rate, since U.S. residential rates vary widely, and include delivery charges if your utility separates supply and delivery—time-of-use plans may also make evening viewing costlier.

Best Backup Power for a TV Setup

A TV does not require a large amount of power compared with refrigerators, heating systems, or air conditioners, making it one of the easiest household devices to keep running during an outage. However, a reliable backup power solution, like a portable power station, ensures your entertainment setup stays available during emergencies, especially when combined with internet equipment, lights, or other essential devices.

For portable backup power, the Anker SOLIX S2000 Portable Power Station provides enough capacity to keep TVs, streaming devices, and small electronics running during short outages. It is designed for flexible home backup, camping, and emergency situations where quiet, clean power is needed.

For longer outages requiring more than just a TV, the Anker SOLIX E10 Whole-Home Backup System provides a larger-scale energy solution:

• 6 kWh to 90 kWh battery capacity supports backup from one day to up to 15 days depending on household usage.
• Up to 30 kW turbo output can support whole-home power demands.
• 9 kW to 27 kW solar input allows faster renewable energy replenishment.

Whether you only need to keep a TV and Wi-Fi router running or want full-home protection, choosing the right backup system depends on your power requirements and outage duration.

Conclusion

Understanding how many watts a TV uses helps you estimate electricity costs, choose the right equipment, and prepare for power outages. Most modern TVs consume between 30 and 200+ watts, with screen size, display technology, and settings determining the actual number.

For everyday use, a typical 100-watt TV has relatively low energy demand. However, combining your TV with other electronics during an outage requires a properly sized backup power solution. Calculating your total wattage and energy needs ensures you select a portable power station or solar generator that keeps your essential devices running when you need them most.

FAQ

How many watts does a 55-inch TV use?

Typically 70 to 120 watts, with many LED models averaging around 95 to 100 watts.

How many watts does a 65-inch TV use?

Most 65-inch TVs use about 90 to 160 watts, although premium OLED, QLED, and mini-LED models may consume more.

Do smart TVs use electricity when turned off?

Yes, most remain in standby mode, typically under 1 watt for efficient models, though quick-start and network features can raise it. Unplugging or using a switched power strip eliminates standby use entirely.

How much does it cost to run a TV all day?

A typical 100-watt TV running 24 hours uses 2.4 kWh. At an electricity rate of $0.17/kWh, that costs about $0.41 per day. Actual costs vary depending on wattage, electricity rates, and settings.

How many amps does a TV use on a 120-volt outlet?

Most TVs use less than 2 amps. To estimate amperage, divide watts by voltage. A 120-watt TV uses about 1 amp on a 120-volt outlet, while a 60-watt TV uses about 0.5 amps.