How to use this calculator
Enter your monitor size, aspect ratio, and native resolution. Then choose a viewing style: text work for a more relaxed distance, balanced for everyday desk use, or immersive for gaming and video work.
The result is measured from your eyes to the front surface of the screen. The calculator also shows the pixel visibility distance, which helps explain whether a lower-resolution display may look coarse when you sit closer.
To compare sharpness directly, use the Monitor PPI Calculator. If you are planning a living room TV instead of a desktop display, use the TV Viewing Distance Calculator.
Monitor viewing distance formula
screen width = diagonal x aspect width / sqrt(aspect width^2 + aspect height^2)viewing distance = screen width / (2 x tan(horizontal FOV / 2))pixel visibility distance = pixel pitch / tan(1 arcminute)The main distance estimate is based on screen width and horizontal field of view. Resolution is used separately to estimate whether individual pixels may be visible at the target distance.
Assumptions and methodology
This calculator combines a practical ergonomic reference range with display geometry. A common desk setup target is about 20-40inches from the eye to the front surface of the screen. Larger and wider monitors may need more distance for comfortable scanning.
- Text work uses a farther 35 degree target horizontal field of view.
- Balanced viewing uses a 40 degree target for everyday desk work.
- Immersive viewing uses a closer 50 degree target for gaming or video workflows.
- Pixel visibility uses one arcminute as a simplified 20/20 visual acuity threshold.
The best real setup is the one that lets you read text without leaning forward, scan the full screen without constant head movement, and keep the top of the display near a comfortable eye line. Adjust distance together with font scaling, chair height, monitor height, brightness, and room lighting.
Example calculations
27-inch 1440p monitor, balanced viewing
A 27-inch 2,560 x 1,440monitor is about 108.8 PPI with a 0.233 mm pixel pitch. For balanced viewing at 40 deg, the target distance is about 32.3inches (82 cm), with a range of 28.4-37.3 inches.
Monitor viewing distance chart
This chart uses the balanced viewing style. Use the calculator above for your exact aspect ratio, resolution, and preferred viewing style.
| Monitor | Resolution | PPI | Target distance | Range | Pixel distance |
|---|---|---|---|---|---|
| 24 in 1080p | 1,920 x 1,080 | 91.8 | 28.7 in / 73 cm | 25.3-33.2 in | 37.5 in |
| 24 in 1440p | 2,560 x 1,440 | 122.4 | 28.7 in / 73 cm | 25.3-33.2 in | 28.1 in |
| 27 in 1440p | 2,560 x 1,440 | 108.8 | 32.3 in / 82 cm | 28.4-37.3 in | 31.6 in |
| 27 in 4K | 3,840 x 2,160 | 163.2 | 32.3 in / 82 cm | 28.4-37.3 in | 21.1 in |
| 32 in 1440p | 2,560 x 1,440 | 91.8 | 38.3 in / 97 cm | 33.7-44.2 in | 37.5 in |
| 32 in 4K | 3,840 x 2,160 | 137.7 | 38.3 in / 97 cm | 33.7-44.2 in | 25.0 in |
| 34 in ultrawide | 3,440 x 1,440 | 109.7 | 42.9 in / 109 cm | 37.7-49.6 in | 31.3 in |
| 49 in super ultrawide | 5,120 x 1,440 | 108.5 | 64.8 in / 165 cm | 56.9-74.8 in | 31.7 in |
Related calculators
TV Viewing Distance Calculator
Find a comfortable TV viewing distance based on screen size, aspect ratio, and field of view.
TV Resolution Calculator
Compare 1080p, 4K, and 8K detail based on TV size, viewing distance, and visual acuity.
Projector Screen Size Calculator
Estimate screen size from projector distance and throw ratio.
Monitor PPI Calculator
Calculate monitor pixel density, pixel pitch, and perceived sharpness from screen size and resolution.
FAQ
How far should I sit from a monitor?
A common ergonomic reference is about 20-40 inches from your eyes to the front of the screen. The best distance also depends on monitor size, aspect ratio, resolution, text size, and whether you want a relaxed or immersive view.
What is a good viewing distance for a 27-inch 1440p monitor?
For a balanced 27-inch 16:9 1440p setup, this calculator recommends about 32 inches, or 82 cm, from your eyes to the screen, with a practical range of about 28-37 inches.
Does monitor resolution change viewing distance?
Resolution does not change the physical field of view distance, but it affects pixel visibility. A higher PPI display lets you sit closer before individual pixels become noticeable.
Should I sit farther from an ultrawide monitor?
Often, yes. Ultrawide and super ultrawide monitors have more screen width, so sitting slightly farther back can make the full screen easier to scan without excessive head movement.
Is monitor viewing distance measured from the eyes or the desk?
Measure from your eyes to the front surface of the screen. Desk depth is only an indirect clue because monitor stands, keyboard position, and posture all change the actual eye-to-screen distance.
Is sitting close to a monitor bad for your eyes?
Sitting very close can be uncomfortable for some people, especially if text is small, brightness is high, or posture is poor. Adjust distance, text scaling, and lighting, and consult an eye care professional if you have persistent discomfort.