# Smart TV Power Consumption Calculator

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If you are planning to buy a new smart TV or wondering how much electricity your existing smart TV is consuming then this article is for you. In this article, we will calculate the power consumption of a smart TV and also look at how much it costs to use one.

Smart TVs have wattage between 45 watts to 280 watts. Generally, the bigger the size of the smart TV, the higher the wattage, and the higher the power consumption.

A 43-inch smart TV rated at around 100 watts, running for 8 hours a day will consume around 0.8 kWh in a day, 24 kWh in a month, and 292 kWh in a month.

This would roughly translate to a monthly electricity cost of \$ 6.19 in the US, £ 8.64 in the UK, C\$ 3.24 in Canada, A\$ 7.68 in Australia, 232 in the Philippines, and Rs 240 in Mumbai, India.

The actual power consumption of a smart TV can be 5% and 10% lower than this, depending on factors like your screen resolution (720p or 1080p), speaker wattage, and your TV settings like, how high is the TV brightness, usage of internet or not and things like that.

Read the article to know how you can calculate the power consumption of your smart TV using a simple calculator.

## How To Calculate the Power Consumption of smart TV:

The power consumption of a smart TV (for that matter any electrical appliance) depends upon two main things,

1. First is the wattage of your smart TV and its operational hours,
2. And second is the electricity tariff in your area.

Let’s quickly see what is the wattage of a smart TV and how you can find wattage of your smart TV.

### What Is the Wattage of A Smart TV:

SMART TVs wattage range from 45 watts to 280 watts. The wattage of a TV often changes with its size, type of screen like LED, QLED, OLED and the picture/video quality like 4K, HD, FULL HD, etc.

You can find the wattage of your smart TV by looking at the technical specification label on its back or read the TV manual or just look for your smart TV on amazon and you will find its wattage in the description section.

If you don’t have time to do this, then use values from the below table.

In the table below, I’ve included the wattage of various-sized and various-type of smart TV (HD, 4K, LED) from Samsung, LG, and Sony.

Note: Some Qled TVs have higher rated wattage than the above wattage, for a 65-inch and 75-inch Qled smart TV the wattage can go as high as 380 Watts.

From the table above we can observe that

The TV’s wattage increases with screen size. A 32-inch smart TV only uses 45 to 60 watts of power, but a 65-inch one uses around 200 watts.

One thing I would like to point out is, the above mentioned figures are average values and they show the rated power/wattage of a TV, which is basically the maximum wattage of the TV.

The actual running wattage can be 5% and 10% lower than this, depending on factors like your screen resolution (720p or 1080p), speaker wattage, and your TV settings like, how high is the brightness, usage of internet or not and things like that.

Still you will get a pretty accurate answer with 5% to 10% variation on either side.

If this whole watt term is confusing you, then here is a quick explanation,

Watt is the unit of power. It means the rate at which electricity is consumed or produced by a device. For example, a 50-watt TV consumes power at a rate of 50 watts per hour, it does not mean that the TV consumed 50 units of electricity, it means it will consume power at a rate of 50 watts every hour.

So in short, the wattage of a smart TV lies between 45 watts to 280 watts and you can find it by looking at the label on it. With that out of the way, let’s look at what is electricity tariff.

In simple words, electricity tariff is the amount your electricity provider charges you for one unit (kWh) of electricity. I live in Mumbai, India here the electricity tariff is Rs 12/kWh.

(What is a Kilowatt hour (kWh) Kilowatt hours or units of electricity is the energy consumption of a device. For example, a 50-watt table fan running for 50 hours will consume 50 watts x 50 hours = 2500-watt hours = 2.5-kilowatt hours of electricity = 2.5 units of electricity. (1 kWh of electricity = 1 unit of electricity))

To find your electricity tariff, just look into your previous month’s electricity bill and find out your monthly electricity consumption, then just divide your monthly electricity consumption by your total monthly electricity bill, the figure you get is approximately your electricity tariff.

I have put together the following table that shows the electricity tariff of a few countries.

## Electricity Tariff Around The World:

CountryElectricity TariffCountryElectricity Tariff
United States\$ 0.154/kWhIndiaRs 6/kWh
United Kingdom£‎ 0.27/kWhGermany€ 0.44/kWh
AustraliaA\$ 0.32/kWhSouth AfricaR 2.558/kWh

You can also check out the following resources to know your electricity tariff:

### Smart TV Power Consumption:

With these two pieces of information in hand, you are ready to find the power consumption of your smart TV.

let me show you an example.

I’ve selected a Sony 43-inch SMART TV with a 96-Watt rating. (For ease of computation, round it off to 100 watts)

Let’s assume we will use this 100 watts smart TV for 8 hours every day for the entire year.

With the knowledge of your smart TVs wattage and your electricity tariff, just use this simple formula to calculate power consumption.

Power consumption of an appliance = Wattage of the appliance X operational hours

Cost to run an appliance = Power consumption of the appliance X electricity tariff

(Operational hours are essentially the number of hours you use your TV.)

In our example, the wattage is 100 watts, and the operational hours are 8 per day, 240 per month, and 2,920 per year.

Consequently, by utilizing the formula above.

Hence by using the above formula.

• Daily power consumption of a 43-inch smart TV (100 watts, 8 hours) = 100 watts X 8 hours = 0.8 kWh
• Similarly, the Monthly power consumption of a 43-inch smart TV (100 watts, 8 hours/day @ 30 days) = 100 watts X 8 X 30 = 24 kWh
• And the annual power consumption of 43-inch smart TV (100 watts, 8 hours/day @ 365 days) = 100 watts X 8 X 365 = 292 kWh

Similarly, In the table below I have calculated the daily, monthly, and annual power consumption of different sizes of Sony smart TVs.

IMP NOTE: I should mention that the aforementioned numbers represent a SMART TV’s maximum power usage. The actual power usage of a SMART TV, however, can be 10% to 20% lower than the figures shown above.

The reason being,

You don’t keep your TV’s brightness set to its highest level all the time, nor are you constantly using the internet on it. All of these features use extra power, which raises your TV’s operating wattage thus increasing the overall power consumption.

### How Much Does It Cost to Run A SMART TV?

Continuing with our above example of a 43-inch smart TV from Sony, let’s calculate how much will it cost us to run this TV.

Cost to run an appliance = Power consumption of the appliance X electricity tariff

Let’s figure out how much it will cost in Mumbai (India), the Philippines, the US, the UK, and Canada to operate this 100-watt SMART TV for 8 hours every day for a whole month.

• The average electricity rate in Mumbai, India, is around Rs 10 per kWh, running this 100-watt, 43-inch SMART TV for 8 hours every day for a month will cost about Rs 240 (24 kWh X Rs 10/kWh).
• The average electricity price in the Philippines is about ₱ 9.70 per kWh, running this 100-watt, 43-inch SMART TV for 8 hours every day for a month will cost about ₱ 233 (24 kWh X ₱ 9.70/kWh).
• The average electricity price in the US is about 25.80 cents per kWh, running this 100-watt, 43-inch SMART TV for 8 hours every day for a month will cost about \$ 6.19 (24 kWh X 25.80 cents/kWh).
• The average electricity price in the UK is about 36 pence per kWh, running this 100-watt, 43-inch SMART TV for 8 hours every day for a month will cost about £ 8.64 (24 kWh X 36p/kWh).
• The average electricity price in Canada is about C\$ 0.156 per kWh, running this 100-watt, 43-inch SMART TV for 8 hours every day for a month will cost about C\$ 3.74 (24 kWh X C\$ 0.156/kWh).

For your reference, I have calculated the power consumption and running costs of 32-inch, 43-inch, 50-inch, 55-inch, and 65-inch smart TVs.

## 32-Inch SMART TV Power Consumption and Running Cost:

The table below shows the power consumption and running cost of 32-inch SMART TV from Sony.

SMART TV: 32 inches

Power: 51 watts.

## 43-Inch SMART TV Power Consumption and Running Cost:

The table below shows the power consumption and running cost of 43-inch SMART TV from Sony.

SMART TV: 43 inches

Power: 100 watts.

## 50-Inch SMART TV Power Consumption and Running Cost:

The table below shows the power consumption and running cost of 50-inch SMART TV from Sony.

SMART TV: 50 inches

Power: 115 watts.

## 55-Inch SMART TV Power Consumption and Running Cost:

The table below shows the power consumption and running cost of 55-inch SMART TV from Sony.

SMART TV: 55 inches

Power: 142 watts.

## 65-Inch SMART TV Power Consumption and Running Cost:

The table below shows the power consumption and running cost of 65-inch SMART TV from Sony.

SMART TV: 65 inches

Power: 180 watts.

As I said before, the above calculated numbers reflect your smart TV’s maximum power usage.

However, depending on how you use your TV, the actual power consumption of your smart TV maybe 10% to 20% lower than the figures above.

You can use the below calculator to calculate your Smart TVs power consumption depending on your usage. Just type the wattage of your TV (use values from the table I mentioned above), and type the operational hours and your are good to go.

## SMART TV Power Consumption Calculator:

As I explained before, the above figures show the maximum power consumption of your smart TV. However, in reality, the actual power consumption of your smart TV can be 10% to 20% lower than the above values depending on your usage.

If you are not happy with the approximate results and you want to know the exact power consumption of your smart TV, then I would suggest you buy a cheap Kill-A-Watt Meter from amazon.

## Calculate the exact power consumption of any smart TV using Kill A Watt Meter:

Kill A Watt Meter is a simple device that gives real-time data on the power consumption of any device.

You can check it on amazon using this link – Kill A Watt Electricity Usage Monitor

To calculate the power consumption of your smart TV using a kill-a-watt meter, first, connect your smart TVs plug into the kill-a-watt meter and then plug the kill-a-watt meter in your wall socket and you are good to go.

Then start using your TV and you can see in real-time how many kWh (units) of electricity it is consuming.

## Do smart TVs Consume a Lot of Electricity?

No, smart televisions don’t use a lot of power. For that matter, most TVs don’t use a lot of power unless they are crazy big in size.

A 43-inch smart TV with an average power rating of 100 watts that runs for 8 hours per day will use about 24 kWh of electricity in a month, whereas an average room heater with an average power rating of 1000 watts that runs for 8 hours per day will use about 24 kWh of electricity in just 3 to 5 days.

The size and brightness of the TV screen, the screen resolution (720p, 1080p, 4K, or 8K), the use of the internet, and a few other features all affect how much power smart TVs use.

If you like this article then you will enjoy the ones below as well.

Check out the following articles to know the power consumption of other appliances:

You can check out this article to know more about the power consumption of common household appliances.

Check out my articles on solar power for home and how it can help you save your electricity bill.