Screen Aspect Ratio Calculator
Find out how big of a TV you should get and how far away you should sit using our TV viewing distance calculator.
To calculate aspect ratio you need to provide Pixels Width and Pixels Height, the aspect ratio will be calculated automatically Screen resolution 640 x 360 pixels Screen dimensions 3.66 x 3.43 x 0.067 m Screen diagonal 5.01602 m Aspect ratio 1.78: 1 Total LED tiles 4(2 x 2) Surface 0.84 m 2 Max. Power consumption 0.51 kW Typ. Power consumption. Aspect ratio calculator. Select the desired screen format Hd video ( 16:9 ) Common computer monitor ( 16:10 ) Traditional tv. If you need to calculate a custom size, this tool below may be useful. Screen format: Select the desired screen format. Ratio of screen (width to height):1 Screen Measurements. Enter the measurement that you know and the other two will be calculated. Viewable Height inches. The 4:3 aspect ratio is what you would typically find on old generation TVs while the more modern digital TVs normally have the 16:9 aspect ratio. Due to its length, the 16:9 aspect ratio is popularly known as the widescreen aspect ratio. Interestingly, the television industry normally uses a different aspect ratio from the film industry.
Calculate How Far You Should Sit From Your TV
Recommended TV Size:Recommended TV Size
This is the distance where your eyes can see the individual pixels
On this page:
If you already have a TV, then enter the TV size to find out how far you should place your seating. If you are looking for a TV, then enter the distance from your seating position to the TV to determine which size TV you should purchase.
How to Choose the Right TV Size
You might be wondering what size TV you should get. This can be a tricky decision, and the internet is loaded with opinions on the topic.
Believe it or not, there is actually a science to choosing how big of a TV you should get for the optimal viewing experience. There are several factors to consider when selecting a TV size, notably distance and viewing angle, resolution, and the type of content you’ll be viewing.
Our calculator takes these into consideration and makes several size recommendations based on the seating distance based on these considerations.
Consider Viewing Distance and Viewing Angle
One of the main determining factors to find the TV size that is right for your room is the viewing angle from your seating position.
THX has some recommendations for the correct viewing angle to achieve an immersive viewing experience. THX recommends a 36° to 40° viewing angle for the best viewing experience, and the Society of Motion Picture and Television Engineers recommends a minimum 30° viewing angle.
Using these metrics, the ideal TV size would have a 30° to 40° viewing angle from the seating position.
Display Size Calculator
There are a number of ratios that get roughly close. Multiplying the seating distance by 0.6 will yield a TV size that will be close to a 30° viewing angle, while multiplying the seating distance by 0.84 will get you a TV size close to the 40° viewing angle.
If your seating distance is 96″, for example, a 58″ TV will have a viewing angle of 30° and an 80″ TV will have a 40° viewing angle.
The Best TV Size Depends on the Content
What you watch on your TV will determine the optimal size and viewing distance. If you intend to watch 4k Bluray movies, you’ll want to choose a TV size with a viewing angle closer to the 40° mark for the most immersive experience.
If you’re watching 1080p television shows in an informal living space where aesthetics are a concern, then you may choose a TV that will have a viewing angle closer to the 30° or maybe even less.
You also should consider the type of viewing experience you prefer, which is a subjective decision that only you can make. Also, consider that one of the most common complaints after choosing a TV is that a larger TV would have been better, it’s not very common to hear people admit that they wish they had chosen a smaller TV.
How to Calculate the Best TV Viewing Distance
Part of selecting the right TV for you also involves figuring out what the best viewing distance is for the TV. And that might depend on a few factors such as the size of the room, the type of the room, the use of the TV, and its resolution.
The room’s size will certainly determine the maximum viewing distance, which will undoubtedly have an impact on just how big of a TV can fit in the space.
The type of the room will also impact the right viewing distance. Formal rooms, for example, a living room with the TV mounted over a fireplace might require a further viewing distance to alleviate neck strain and accommodate room aesthetics.
Media rooms dedicated to movies, sports, or gaming might shorten the viewing distance for an optimal movie experience.
Optimal Viewing Distance for Various TV Sizes
Led Screen Aspect Ratio Calculator
As discussed above, the screen viewing angle is a significant factor in determining the optimal viewing distance. The chart below shows the optimal viewing distances for various TV sizes in the suggested 26° – 40° range.
|TV Size||Optimal Seating Distance|
|50″||5′ 0″ – 7′ 10″|
|55″||5′ 6″ – 8′ 8″|
|60″||6′ 0″ – 9′ 5″|
|65″||6′ 6″ – 10′ 3″|
|70″||7′ 0″ – 11′ 0″|
|75″||7′ 6″ – 11′ 10″|
|80″||8′ 0″ – 12′ 7″|
|85″||8′ 6″ – 13′ 4″|
|90″||9′ 0″ – 14′ 2″|
See a full list of TV sizes and viewing distance ranges for a 4K TV.
Optimal Viewing Distance Based on TV Resolution
The TV’s resolution will also play a role in how far you can sit from the TV. There is a point at which your eyes can make out the individual pixels of the TV screen, and the picture begins to degrade based on your visual acuity.
TVs with higher resolution have smaller pixels that make up the image, which are harder to see at the same distance. This means that you can sit closer to TVs with a higher resolution before you can begin to see the pixels.
You can sit much closer to a 4K TV without making out the pixels than you can a 1080P TV and have a more immersive viewing experience.
The number of pixels on a display in relation to the size is known as pixel density, and it’s measured in pixels per inch, or PPI. Use our PPI calculator to measure the pixel density of your screen.
The viewing distance calculator above takes this into account when recommending a size and seating distance.
Minimum Viewing Distance by Size and Resolution
Is an upgrade to a 4k TV worth it? The chart below shows the distances that the eye can see the individual pixels on the screen.
|TV Size||1080p Minimum Distance||4k Minimum Distance|
|40″||4′ 11″||2′ 4″|
|46″||5′ 8″||2′ 8″|
|50″||6′ 2″||2′ 11″|
|55″||6′ 9″||3′ 2″|
|60″||7′ 5″||3′ 6″|
|70″||8′ 8″||4′ 1″|
|75″||9′ 3″||4′ 4″|
|80″||9′ 10″||4′ 8″|
|90″||11′ 1″||5′ 3″|
If you can’t see the pixels on the screen at 1080p resolution, then an upgrade to 4K might not be noticeable. If your seating distance is closer than the minimum viewing distance for the 1080p resolution, then an upgrade to 4k will be a noticeable improvement.
Minimum Viewing Distance Formulas
|8K||0.4x Screen Width|
|4K||0.8x Screen Width|
|1080P||1.7x Screen Width|
|720P||2.7x Screen Width|
|480P||4.1x Screen Width|
If you need to find your TV width refer to a chart of dimensions for common TV sizes or use our screen size calculator.
Other Factors to Consider When Choosing a TV
There are a few other factors that you may wish to consider when selecting a TV size.
The first is room aesthetics. Some rooms may accommodate a 90″ TV based on viewing distance, but if that room is a formal living space, then aesthetics should also be considered.
Safety should also be considered. When placing the TV on a piece of furniture, be sure to consider the TV’s size and weight and the furniture’s weight limit.
Consider the best height to mount your TV, which could determine how large the screen can be. The height of the TV may change the room’s aesthetics and may be a determining factor.
Mounting height should definitely be considered when placing the TV. Learn more about TV mounting costs and different bracket options.
Finally, the budget should factor into your decision when selecting a TV size or resolution. Larger screens and higher resolution displays cost more, and it would be wise to evaluate the cost of the display into the decision when selecting the ideal TV for your application.
What is throw distance for a projector?
A projector's distance from the lens to the screen surface is called the Throw Distance. The throw distance and the size of the image it produces on the screen are proportional to each other based on the optics of the lens. As you increase the distance between the projector lens and the screen the image will also increase.
How far do you put a projector from the screen?
A projector's distance from a screen and the size of the image it produces are proportional to each other based on the optics of the lens. As you increase the distance between the projector and a screen the image will also increase. If your projector has a zoom lens, the lens can be adjusted to change the size of the screen image without changing the distance of the projector. Since each projector lens is different, an online projection calculator tool will help you calculate the size of an image on a screen relative to how far the projector is placed from screen.
What is a throw ratio for a projector?
For any given projector, the width of the image (W) relative to the throw distance (D) is know as the throw ratio D/W or distance over width. So for example, the most common projector throw ratio is 2.0. This means that for each foot of image width, the projector needs to be 2 feet away or D/W = 2/1 = 2.0. So if I'm using a projector with a throw ratio of 2.0 and I have an image width of 5 feet, then my throw distance must be 10 feet. So the throw ratio is a simple formula that let's you easily compute throw distance or image width given that you know one of these measurements. A projector zoom lens will have two different throw ratios, one for the minimum zoom setting and one for the maximum zoom setting.
What is considered a short throw projector?
Screen Resolution Aspect Ratio Calculator
A short throw projector is a projector with a lens that has a throw ratio of 0.4 (distance/width) or less. These projectors are ideal for rear screen applications where the area behind the screen is limited, or for a wall mounted application where the projector will be mounted within 1 or 2 feet from the screen. The goal of these projectors is to produce as large of an image within the shortest amount of space between the projector and the screen.