How Many Watts to Run a Laptop? Easy Guide

Regarding some issues, most laptop users appear unconcerned or have nothing to worry about. If you want to comprehend everything about the Laptop you have been using for years or want to know “How Many Watts to Run a Laptop,” this article is for you.

As a rule of thumb, a typical 15-inch laptop consumes roughly 60 watts of electricity every hour. However, this would necessitate further expenditures. You may not know the many elements that influence your energy use.

Charging, screen brightness, programme operation, graphics card use, and other factors affect how much power is consumed. In this article, we will also talk about How to Reduce Laptop Power Consumption.

How Many Watts to Run a Laptop?

The 65W laptop power supply is the most prevalent. Laptop wattage ranges from 30W to 200W, according to a study of 144 of the most popular laptops on the market.

There are, however, a few exceptions. Over-200-watt gaming laptops are becoming increasingly frequent (more on this below). The wattage of some of the most admired laptops may be found in the table below.

Lenovo Yoga65W
Dell Inspiron 1590W
Dell Inspiron 1465W
MacBook Pro 1696W or 140, depending upon the spec
MacBook pro 1467W
MacBook Pro 1361W
MacBook Air30W
Lenovo Chromebook 345W
Lenovo Ideapad 365W

How many watts to charge a laptop?

Laptops use far less power than desktop PCs and external monitors, which is why laptops are becoming increasingly popular. Laptops are typically charged to 100% once a day on average. The power required to trust a computer varies from laptop to laptop, but the typical range is between 20 and 50 watts.

However, not all this power goes towards charging your laptop’s battery; on average, over 30% of this energy is lost as heat emission and excessive radiation during the charging process. The power delivered to your laptop is only about 70% of what it needs to be charged.

Always remember that the quality of your battery significantly impacts how quickly your device’s battery recharges. Your laptop’s ability to charge is affected by the electricity it consumes. Setting time is inversely proportional to how much power your computer consumes when charging.

For example, when using a large laptop, it will likely consume more power in standby modes than a smaller laptop, such as a notebook or a tablet, when used commonly. We have another awesome article on the same topic that is How Many Watt does a Laptop use when Charging?

How Many Watts Does Gaming Laptop Use?

How many watts does a laptop use per hour

All gaming laptop features are compelling and require a specific set of parts. That being said, there are a few others that deserve special mention.

Running high-end games is understandable to gamers because you’ve played them yourself. Because of its class, the laptop must be among the best available. Because they’re so loaded, gaming laptops are also getting heavier.

Many high-performance battery-powered computers are available, including high-end gaming laptops. Check the charger you use to see how much power your gaming laptop uses.

Important Note: To check the power consumption of your gaming laptop, check the charger used.

The Acer Predator Helios 300 is one of the most popular gaming laptops, one of the best laptops in almost any laptop series, and has a 180W charger. You’ll need at least 180 watts per hour to accomplish this.

How Many Watts Does the Apple MacBook Consume?

For example, a 13-inch MacBook Pro requires 61W of electricity from the charger, but the 15-inch MacBook consumes an average of 87W/hour. You can determine the daily and weekly power costs based on the given assumptions.

The MacBook uses 61Wh, or 0.061kW, on average per day for 10 hours. There was a total of 51.24 cents in electricity costs every week, which came to 7.32 cents per week.

Desktop Computers Require More Power Than Laptop?

Laptops require less power than desktop computers because of their more efficient energy use. Due to the significant force necessary for desktop computers to carry out their functions, these devices are permanently connected to their respective power supplies.

There are laptops out there that consume a lot of power. These PCs might use more electricity than those that consume less energy overall. On the other hand, as a rule of thumb, desktop computers will consume more power than laptops.

In general, desktop computers require about 300 watts per hour. Connecting another monitor to it or having a significantly larger screen can contribute more than 50 watts of power consumption. On the other hand, typical laptops might require sixty watts an hour.

6 Ways to Reduce Laptop Power Consumption

These ten simple suggestions will help you save money on your laptop’s electricity bill. Several of these also help conserve battery life when the computer isn’t plugged in.

1- Make Sleep Adjustments:

You can save excellent margin money on your electricity bill by turning your laptop into sleep mode sooner when you are not using it. The ENERGY STAR estimates an annual savings of $15 per computer. If you work from home or use your smartphone for extended periods, you may expect to save at least this amount. 

Laptops ship with a sleep mode duration ranging from four to thirty minutes. Over 1,000 laptops have been studied, and the most common sleep mode duration is 10 minutes, with an average sleep mode duration of 18 minutes.

2- Remember Display Sleep Mode:

Display sleep mode, distinct from the primary sleep mode feature, is found on many laptops. If you want to save power, but the screen to sleep, don’t worry about your apps running in the background. Think about turning off your display when you’re not using it rather than turning it off. 

More than 1,000 laptops have been analysed, and the default time for display sleep mode spans from 4 to 15 minutes when shipped, with 10 minutes being the most common and 9.5 minutes being the average.

3- Power-saving Mode Is Activated:

Most laptops have a power-saving mode that may be active by pressing the power button. This mode reduces the performance of some laptop functionalities to conserve electricity. Check out this mode, as most functions will still work fine.

4- Dim the Screen’s Illumination:

The brightness of your laptop’s display considerably impacts the amount of electricity it consumes. A lower level of intelligence means reduced power use.

5- Reduce the Temperature:

Laptop fans, by their very nature, use electricity. When there is less airflow around the laptop, such as when it is sat on and surrounded by bedding, they are needed more frequently. Consider where you set the gadget when using it, and ensure that the heat dissipation is adequate. As a result, the laptop will use less electricity to stay calm.

6- Unplug and Turn Off the Power:

Even when unplugged, most laptops use power even after being shut off. A computer in Off mode can use more electricity daily than a laptop in Sleep mode, even though Off mode uses less electricity. Remember to disconnect your devices to conserve electricity.

FAQs – How Many Watts to Run a Laptop?

How Much Electricity Does a Laptop Use in 1 Hour?

Laptops use up to 60W of power per hour, whereas desktop computers use up to 300W per hour, and much more if you’re running two monitors or screens simultaneously. A laptop consumes 20% less power than a desktop computer, making it more environmentally friendly overall.

Does Charging a Laptop Use a Lot of Electricity?

When left plugged in, your laptop’s charger can draw up to 29.84 watts of power on an ordinary day. You can expect to use up to 22.40 watts if you leave your computer plugged in after its battery is drained. This amount accounts for over 60% of your laptop’s power consumption

How Much Electricity Does a Laptop Use in 24 Hours?

It is possible to reduce the number of electricity laptops power savers use. On the other hand, about 60-200 Watts of electricity is consumed by desktop computers. 

Can a 40w Charge a Laptop?

Suppose you don’t have a battery installed. In that case, the laptop will function fine on 40 watts of electricity, as power supplies for notebooks are designed to power the notebook and charge the battery simultaneously.


So, How Many Watts to Run a Laptop? Gaming laptops require up to 150 watts, compared to a standard laptop’s 45-90 watts. The type of battery in your PC and whether it uses Li-ion or nickel-based batteries will determine how many amps it can safely withstand. It is safe to use a laptop if it consumes less than 50 watts.

A calculator is an excellent tool if you want to know how many amps your laptop battery can sustain. Keeping an eye on your computer’s electricity consumption will let you realise when it’s time to take preventative actions.

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