How Many Watts Does a Computer Use

A computer is the first thing that comes to mind when someone thinks about a machine which is great for work and entertainment. Most people prefer desktop computers over gaming consoles and laptops as they can provide the best experience, no matter if you want to do some hardcore gaming or you want to work from home. However, with the rising electricity cost and high-performance parts used in computers, everyone wants to know how many watts does a computer need? This post will tell you everything there is to know about computer watts usage, so you can make proper arrangements for your computer setup.

Key Takeaways about Computer Wattage

  • Considering the average use of a desktop computer with speakers and a printer, it consumes 200 watts of electricity when someone is using it. The energy usage of a laptop is between 50 and 100 watts of electricity as there are different models with different features while being used. When your computer or laptop is sitting in standby mode, the computer wattusage drops to a third.
  • Suppose your computer runs for eight hours a day; its energy use will be 600 KWH annually. The energy consumption of eight hours per day use of a laptop is 150 to 300 KWH per year.
  • However, to avoid paying this high electricity cost, you can use a Jackery Solar Generator to save on electricity.  

How Many Watts Does a Computer Use

If you are wondering how many watts does a computer use? The estimated answer is 30 to 300 W as there is a variety of chips and hardware configurations which make it hard to calculate a single result. Even if you don't consider the different hardware used in computers, there are always factors like vampire energy and sleep mode. You also can't calculate computer watts based on the output mentioned on the power supply as it only tells you the max output. To get a better overview, let’s take a look at the energy consumption of laptops from some of the major brands.  

Computer Watts Consumption

Computer

 

Wattage

Estimated Working Hours (Hours)

Estimated Power Needed daily (Watt-hours)

MacBook Air

30W

8

240

MacBook Pro 13″

61W

8

488

MacBook Pro 14″

67W

8

536

MacBook Pro 16″

96W or 140W depending on the spec

8

944 average

Microsoft Surface Laptop Go

39W

8

312

Samsung Galaxy Chromebook 2

45W

8

360

Samsung Galaxy Book Go

45W

8

360

Samsung Chromebook 4+

45W

8

360

Dell Inspiron 14″

65W

8

520

Dell Inspiron 17″

90W

8

720

Dell Inspiron 15 (7000)

90W

8

720

Dell Inspiron 15 (3000)

45W

8

360

Dell XPS 15

130W

8

1040

Dell G15 Gaming Laptop

180W

8

1440

ASUS ROG Zephyrus15

200W

8

1600

HP Laptops

45W to 150W, depending on the model

8

780 average

Acer Laptops

45W to 180W, depending on the model

8

900 average

Lenovo Flex 3

45W

8

360

Lenovo Chromebook 3

45W

8

360

Lenovo Ideapad 3

65W

8

520

Lenovo Yoga

65W

8

520

How Many Watts Does a Computer Monitor Use

Similar to laptops, where there are different hardware configurations and types, the energy consumption of desktop monitors also depends on multiple factors. The two main factors are the screen size and monitor type. You can get an estimate of 20 to 100 Watts for typical computer monitors. The chart of monitor watt usage moves from LED, LCD, CRT, and Plasma. Here, LED is the least, and plasma is the highest energy-consuming monitor. As you also know, monitor screens are available in multiple sizes, starting from 15 inches all the way to 50 inches. Watt usage increases with the size of the computer monitor.

What Size Generator Do I Need for the Computer When Off-Grid

If you have read the article all the way from the start, you should have a general idea of how many watts does a computer use? Now that you know this, the first thing to do is calculate how much it is going to cost you to use a computer. Now, you can either pay for that, or you can try and save money on electricity bills through other options. Electricity costs are projected to go higher, and for someone who uses their computer for work and entertainment, paying expensive electricity bills is not ideal. The best way to tackle it is to use a Jackery solar generator to power your computer so you can use it without worrying about electricity bills. Jackery Solar Generators offers a clean, renewable, and safe energy source. They are reliable and best for indoor and outdoor use. Check out which Jackery Solar Generator is ideal for you based on your usage of watts of a computer.

Best Solar Generator for Computer When Off-Grid

Jackery is the world's leading brand for portable energy, with a line of the most reliable and efficient solar generators. All of our Jackery Solar generators offer fast charging and safe and clean energy for long hours.

Best for Portable- Jackery Solar Generator 500

The Jackery Solar Generator 500 has 518Wh capacity, 5000W AC power, and 100W max DC output. It is a quiet and low-cost solar generator with zero emissions, best for powering your computer for hours. You can also use it for other appliances and devices such as your TV, light, mini-cooler, blender, and electric blanket. It weighs only 13.32 lbs, making it easy to carry when you are outdoors. You can charge it within 9.5 hours due to the advanced MPPT technology. It also gives you three USB ports, a 12V car outlet, and an AC outlet.

Best for Portable- Jackery Solar Generator 500

Best for Most Computers- Jackery Solar Generator 1000 Pro

The Jackery Solar Generator 1000 Pro has 1002Wh capacity, 1000W AC power, and a 3+2 year warranty. It comes with a 1.8-hour fast charge and foldable handles, which makes it easy for transportation. Jackery Solar Generator 1000 pro provides stable Power to all your appliances due to its pure sine-wane inverter technology. You can use it to run your computer, refrigerator, tower fan, oven, TV, and coffee maker. It is your go-to power source when you are out camping.

Best for Most Computers- Jackery Solar Generator 1000 Pro

Best for Off-Grid Working - Jackery Solar Generator 1500 Pro

The Jackery Solar Generator 1500 Pro has 1512Wh capacity, 1800W AC power, and 1000 recharge cycles with an 80% battery capacity. You can fully charge it within 2 hours to power your appliances. It has multiple safety features, such as temp control and a multi-duct design. You get a 5-year product warranty and a lightweight solar generator that is easy to carry. You can use it to run professional equipment and power tools, home appliances like TVs, computers, and refrigerators, and you can also use it for camping.

Best for Off-Grid Working - Jackery Solar Generator 1500 Pro

Best for All Situation - Jackery Solar Generator 2000 Pro

The Jackery Solar Generator 2000 Pro has 2160Wh capacity, 2200W AC power, and 3.0 Quick Charge technologies. You can charge it within 2.5 hours and use it to power your appliances for long hours. It is one of the safest and most reliable Jackery products with various management systems such as BMS, short circuit protection, and low voltage protection. You can buy it to power devices when you are outdoors. It also acts as the best energy backup when the Power goes out, and it can also run your power tools.

Best for All Situation - Jackery Solar Generator 2000 Pro

Jackery Products

Capacity

(Watt-Hours)

Output

Computer Wattage

 

Supported Working Hours

Jackery Solar Generator 2000Pro

2160Wh (43.2V,  50Ah)

AC Output: 2200W (4400W Peak)

200W

9

Jackery Solar Generator 1500 Pro

1512Wh (25.2V, 60.9Ah)    

AC Output: 1800W (3600W Peak)

200W

6.5

Jackery Solar Generator 1000 Pro

1002Wh (43.2V,  23.2Ah)

AC Output: 1000W (2000W Peak)

200W

4.25

Jackery Solar Generator 500

518Wh (21.6V, 24Ah)

AC Output: 500W (1000W Peak)

200W

2.2

FAQ about Computer Wattage

How much electricity does a PC use in 24 hours?

You can't get an exact answer for the electricity usage of a PC in 24 hours as it depends on multiple factors. First of all, every computer uses different Watts hours based on its hardware configuration and connected devices. Suppose your computer uses 80W based on your setup. Now, you need the focus on the 24 hours. No one is going to use their PC for 24 hours without taking a break. Let's say you use your computer for 8 hours a day, and you leave it on standby for 16 hours. Now, you have all the numbers that you need to get an estimate of the electricity your PC uses in 24 hours.

Start with the Watts of electricity. The energy needed for your PC is 80W when it is running and 1W when you leave it on standby. Multiply 80W by 8h and 1W by 16h.

80*8=640Wh

1*16=16WH

Add both 640+16= 656WH

If you want to calculate in units, you have to do further calculations. One unit is 1000Wh. Divide the previous result by 1000 to get the answer in units.

656/1000= 0.656 units in 24 hours

How much Power does a PC consume?

The power consumption of a PC depends on its type and hardware configuration. Laptops and desktop computers are both considered PCs, but their power consumption is completely different. Laptops typically use less energy, between 50 and 100 Wh. Desktop computers, on the other hand, use 200 to 500 Wh. The power consumption of a PC is a vague question as there are multiple variables. Suppose your PC setup has speakers, a printer, and some other device. Its power consumption will be higher than an average PC.

How much electricity does a 500w computer use?

You can easily calculate the electricity usage of a 500w computer. Most people use their computer for 8 hours daily.

500w * 8h= 4000Wh which is 4KWh

Now, you can use this number to calculate your computer’s yearly electricity usage. Use simple multiplication.

4KWh * 365= 1460KWH

Conclusion

Let’s conclude our guide on how many watts does a computer use? You can't provide a single number to represent the watt usage of every computer because it depends on the type of computer you have and its hardware configuration. What you can do, is you can calculate your computer's electricity consumption based on your setup. No matter how you calculate it, the number is always going to surprise you because electricity is expensive. So, for those who work and play on their computers, paying expensive bills is a problem. However, you can easily solve this problem by using a Jackery Solar Generator to power your computer with solar energy.


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