How Big is a 100-inch Projector Screen? (Dimensions Measured)

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Are you wondering how big is a 100-inch projector screen? You’ve landed on the right page. Here’s your answer for 100-inch projector screen dimensions:

A 100-inch projector screen measures 87 x 49 inches in a 16:9 aspect ratio. For a 4:3 aspect ratio, it measures 80 x 60 inches.

Now that you know the 100-inch projector screen measurements; but, is it right for you?

Let’s find out.

How Big is a 100-inch Projector Screen?

A 100-inch projector screen dimensions are 87 inches of width and 49 inches of height in a 16:9 aspect ratio. In 4:3 aspect ratio, a 100-inch projector screen has width of 80 inches and height of 60 inches.

100-inch Projector Screen Dimensions

A TV, computer or projector screen is measured diagonally, from the top-left corner to the bottom-right corner. Hence, the overall screen size number is bigger than its width and height.

Most people get confused or feel cheated with their projector screen because they measure the width rather than measuring it diagonally. Hence I decided to write this article to educate other customers & buyers.

100-inch Projector Screen in 16:9 Aspect Ratio

16:9 is the most popular aspect ratio among projector screens.

The majority of online content is in 16:9 format. On top of that, it offers an excellent middle ground while watching content in 16:10, 4:3, 3:2, and 2.39:1 aspect ratios.

A 100-inch projector screen dimensions with a 16:9 aspect ratio has a width of 87 inches or 221 centimeters. In comparison, the height measures 49 inches or 124.5 centimeters.

For a 16:9 aspect ratio 100-inch screen, you’ll need extra horizontal space in your room.

In addition, you’ll also need to purchase a projector that supports 16:9 aspect ratio resolutions like 3840 x 2160p (4K), 1920 x 1080p (Full HD), and 1280 x 720p (HD).

Also Read: 7 Best 4K Projectors under $2000

100-inch Projector Screen in 4:3 Aspect Ratio

The 4:3 aspect ratio is popular among businesses, classrooms, healthcare facilities, etc.

While 4:3 aspect ratio projector screens aren’t as popular as their 16:9 counterparts; however, they’re still available in the market.

They make up an excellent pick for offices, businesses, and classrooms which use projectors for presentations.

Most presentations have a 4:3 aspect ratio to cover additional vertical space within a single slide.

A 4:3 aspect ratio projector screen has a dimension of 80 inches or 203.2 centimeters in width and 60 inches or 152.4 centimeters in height.

It requires lesser horizontal space than a 16:9 aspect ratio screen. However, the vertical space requirement is more.

How far should you sit from a 100-inch screen?

It is recommended to sit anywhere from 116 to 166 inches away from a 100-inch screen. The distance is derived from the formula recommended by THX and the Society of Motion Pictures and Television Engineers (SMPTE). (Read More)

To keep things simple, you must keep a minimum distance from where you can see the whole screen. If you have to constantly move your eyes to see the whole picture. In that case, you’re sitting close to the projection screen.

Sitting close to a 100-inch screen will strain your eyes and hamper your viewing experience.

Also Read: How Far Should You Sit From a 120-inch Projector Screen?

Frequently Asked Questions

What size room do you need for a 100-inch screen?

You’ll need a 170 sq. ft. to 275 sq. ft. room size for a 100-inch screen. It is based on the ideal viewing distance for a 100-inch screen. More importantly, you’ll need a room with over 17 feet in length.

Is a 100-inch projector screen big enough?

It depends on various factors like room size, projector output and viewing distance. For a 150 sq. ft. room, the 100-inch projector screen will look big. Comparatively, a 100-inch projector screen will look small in a 500 sq. ft. room.

How big is a 110-inch projector screen?

A 110-inch projector screen measures 96 inches wide and 54 inches high in a 16:9 aspect ratio. In 4:3 aspect ratio, it measures 88 x 66 inches.

How big is a 90-inch projector screen?

A 90-inch projector screen measures 78 inches wide and 44 inches high in a 16:9 aspect ratio. In 4:3 aspect ratio, it measures 72 x 54 inches.

How big is an 80-inch projector screen?

An 80-inch projector screen measures 70 inches wide and 39 inches high in a 16:9 aspect ratio. In 4:3 aspect ratio, it measures 64 x 48 inches.


I hope this article helped you learn about how big is a 100-inch projector screen and the 100-inch screen dimensions.

If you have any other questions, please don’t hesitate to leave them in the comments section below.


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