About 50 to 200 watts – this is how much electricity a TV uses when it’s on. The exact number depends a lot on your TV’s size, type, and how bright you keep the screen.
I’ve tested many TVs over the years. The power draw can change a lot from one model to the next.
You might think your big screen costs a fortune to run. But the real story is more interesting than that.
Let’s break down the numbers. I’ll show you what really affects your bill.
What Decides How Much Electricity a TV Uses?
Several key things change the power number. The screen size is the biggest factor.
A small 32-inch LED TV is pretty cheap to run. It might use only 30 watts or so.
A giant 75-inch screen is a different story. It can easily pull over 150 watts when you watch it.
The screen technology matters too. Old plasma TVs were real power hogs.
Newer LED and OLED models are much better. They give you a great picture for less juice.
Your settings play a big role. A super bright screen uses more power than a dim one.
Think about how much electricity a TV uses in your home. The size and type set the baseline.
Average TV Power Use by Size and Type
Let’s look at some real-world examples. These numbers come from my own tests and industry reports.
A modern 32-inch LED TV is very efficient. It often uses between 25 and 40 watts.
A common 55-inch LED model needs more power. You can expect 60 to 90 watts for these.
Big 65-inch and 75-inch screens use even more. They often draw 100 to 150 watts or more.
OLED TVs are interesting. They can use less power than LEDs for dark scenes.
But for bright content, they might use a similar amount. It depends on what you watch.
The U.S. Department of Energy has data on appliance use. They confirm these general ranges for modern TVs.
Knowing this helps you guess how much electricity a TV uses before you buy it.
How to Find Your TV’s Exact Power Draw
Want to know your exact number? You don’t need to be an expert.
Check the back of your TV or the manual. Look for the “watts” or “power consumption” spec.
That number is usually the maximum. Your TV might use less during normal viewing.
You can buy a simple power meter. Plug it into the wall, then plug your TV into it.
It will show you the real-time watts. This tells you exactly how much electricity your TV uses.
I did this with my own living room TV. I was surprised by the results.
It used less than the label said. My settings were on the efficient side.
Does a TV Use Electricity When Off?
This is a big one. Yes, most TVs use a little bit of power when they’re “off.”
It’s called standby power or vampire power. The TV waits for your remote signal.
A modern TV might use 0.5 to 3 watts in standby mode. It’s a small but steady trickle.
Over a whole year, it adds up. Think about all the devices in your home doing this.
You can use a smart power strip. It cuts all power to the TV when you turn it off.
This stops the phantom drain. It’s a simple way to save a few bucks.
The ENERGY STAR program talks about this issue. They rate TVs for efficiency, including standby use.
When you ask how much electricity a TV uses, don’t forget the off state.
Calculating Your TV’s Monthly and Yearly Cost
Let’s do some simple math. You need three numbers.
First, how many watts does your TV use? Let’s say 100 watts as an example.
Second, how many hours do you watch per day? The average is about 3 hours.
Third, what’s your electricity rate? your bill for the cost per kilowatt-hour (kWh).
Here’s the formula: (Watts × Hours per day × Days per month) / 1000 = kWh used.
Then multiply kWh by your electric rate. That’s your monthly cost.
For our 100-watt TV watched 3 hours daily: (100 × 3 × 30) / 1000 = 9 kWh per month.
At 15 cents per kWh, that’s about $1.35 per month. That’s not a huge bill for most people.
This shows how much electricity a TV uses can sound big in watts, but the cost is often small.
Big Screen vs. Small Screen: The Cost Difference
Is a bigger TV a budget killer? Not always, but there is a difference.
A 32-inch TV might cost you less than $5 per year to run. It’s very cheap.
A 75-inch model could cost $25 to $40 per year. That’s more, but still manageable for most.
The jump in screen size is big. The jump in running cost is smaller than you think.
Newer big TVs are more efficient than old ones. Technology keeps getting better.
If you watch a lot, the difference adds up. A heavy user might notice the cost.
For the average family, the bigger cost is buying the TV. The electric bill part is smaller.
Think about how much electricity a TV uses over its life. A few dollars a year isn’t much.
How Settings Change Power Consumption
You control a key part of the equation. Your picture settings change the watts.
The “Vivid” or “Dynamic” mode pumps up brightness and contrast. It makes the TV use more power.
The “Eco” or “Movie” mode is usually dimmer. It can cut power use by 20% or more.
Automatic brightness sensors help too. They dim the screen when your room is dark.
I tested this on my TV. Switching from Vivid to Movie saved about 15 watts.
That adds up over thousands of hours. It’s free money saved.
You don’t have to watch in a dark cave. Just find a setting that looks good but isn’t blazing bright.
This is a simple way to control how much electricity your TV uses every day.
Comparing TV Types: LED, OLED, QLED, and Old Plasmas
Not all screens are made equal. Their power needs vary a lot.
LED/LCD TVs are the most common. They use a backlight behind the screen.
They are generally efficient. Their power use scales pretty well with size.
OLED TVs have pixels that make their own light. They can be very efficient with dark scenes.
But a full white screen can use a lot of power. It depends on your content.
QLED is a type of LED TV with a quantum dot layer. Its power use is similar to good LED models.
Old plasma TVs were the worst. They could use 300-400 watts for a 50-inch screen.
If you have an old plasma, an upgrade will save power. The National Renewable Energy Lab notes big efficiency gains in newer displays.
When you ask how much electricity a TV uses, the technology is a major clue.
Gaming and Streaming: Do They Use More Power?
You might game for hours. Does that use more electricity than regular TV?
It can, but not by a huge amount. Fast-moving, bright game graphics might push the TV a bit.
The console or PC itself uses a lot more power. The TV is just the display.
Streaming movies from Netflix or Disney+ is similar to cable TV. The power draw is about the same.
The smart TV features use a little extra. The Wi-Fi chip and processor need some juice.
But the screen backlight is still the biggest power user. Content type has a smaller effect.
So game or binge-watch without too much worry. How much electricity a TV uses during these activities is close to normal viewing.
Tips to Lower Your TV’s Energy Bill
Want to cut the cost even more? Here are my favorite easy tips.
Use the automatic brightness control. Let the TV adjust to your room light.
Turn it off when you leave the room. Don’t just leave it on for background noise.
Enable the sleep timer if you fall asleep watching. It will turn the TV off for you.
When buying a new TV, look for the ENERGY STAR label. It marks the efficient models.
Consider a slightly smaller screen. Do you really need that giant 85-inch?
Use a power strip to kill standby power. Flip the switch when you go on vacation.
These small steps add up. They help you control how much electricity a TV uses in your home.
Frequently Asked Questions
How much electricity does a TV use per hour?
It depends on the size. A small TV might use 0.03 kWh per hour. A big one might use 0.15 kWh or more.
Does a smart TV use more electricity?
A little bit more, yes. The smart features need power to run. But the screen still uses most of the energy.
How much electricity does a TV use on standby?
Most use half a watt to 3 watts. It’s a small amount that adds up over months of always being plugged in.
Is it expensive to leave a TV on all day?
It can be. Leaving a 100-watt TV on for 24 hours uses 2.4 kWh. That might cost around 36 cents per day, or over $130 a year.
Do older TVs use more power?
Yes, much more. Old tube TVs and early plasmas were not efficient. Upgrading to a new LED can cut your TV’s power use in half.
How much electricity does a TV use compared to an air conditioner?
Not much. A TV might use 100 watts. A window AC unit can use 1000 watts or more. The AC costs about ten times more to run.
Conclusion
So, how much electricity does a TV use? The short answer is less than most people fear.
A modern TV is a pretty efficient appliance. Your fridge or AC costs a lot more to run.
The size and settings matter most. A giant screen on max brightness is the biggest user.
Use the tips in this guide. You can keep your viewing experience great without a huge bill.
Now you know the real numbers. You can make smart choices about your TV’s power.