How Far Should You Sit From Your Monitor?

Most people set their monitor distance by feel, then wonder why their eyes ache after a long session or why text looks soft. There is an actual answer, and it comes from two numbers you already know: how big the screen is, and how many pixels it has.

This guide gives the range for common monitor sizes, explains why a 4K panel changes the answer, and covers what to do when your desk is simply too shallow.

The short answer

For a typical desk monitor, sit roughly 1.2 times the diagonal away. A 27-inch screen wants about 82 cm; a 24-inch wants about 73 cm.

That figure comes from aiming for a field of view around 30 degrees, which is the same target cinema guidelines use. It is close enough that you can measure it with a tape measure and stop thinking about it.

The numbers for common monitors

These come from our viewing distance calculator. Minimum is the point where pixels stop being individually visible; optimal is the 30-degree target; maximum is where you start losing fine detail.

Notice that the optimal distance is set entirely by screen size. Resolution does not move it. What resolution changes is how close you are allowed to sit before the image falls apart.

Why resolution changes the minimum, not the optimum

Pixel density — PPI, or pixels per inch — decides how close you can get before your eye resolves individual pixels.

Compare the two 27-inch rows above. Both want you at 82 cm for comfort. But the 1080p panel is 82 PPI and the 4K panel is 163 PPI. At 50 cm the 4K screen still looks perfectly smooth; the 1080p one shows visible pixel structure and fringing on text.

This is why a 27-inch 1080p monitor is often criticised. Nothing is wrong with it at the right distance. It is just that a 27-inch screen naturally pulls you to a distance where 82 PPI is not quite enough. You can check any combination with the PPI calculator. Our guide to what PPI is explains the numbers, and the best monitor size for gaming pairs each resolution with a size.

The rough PPI bands

• Below 90 PPI — pixels visible at desk distance. Sit further back, or raise the resolution.
• 90 to 140 PPI — the normal desktop range. Text is clean at arm's length.
• Above 140 PPI — pixels invisible at any sane distance. You will likely want display scaling.

When your desk is too shallow

Plenty of desks are 60 cm deep, which puts a 27-inch monitor about 15 cm closer than ideal once you account for the stand. Three things actually help:

• A monitor arm. Clamping to the back edge recovers most of the depth a stand eats, and it is the cheapest fix.
• Push the screen back and tilt it slightly. A small backward tilt keeps the whole panel roughly equidistant from your eyes.
• Drop a size. A 24-inch screen at 73 cm is a better experience than a 32-inch at 60 cm, whatever the spec sheet says.

If you are choosing between sizes rather than fixing an existing setup, the resolution calculator shows what each combination gives you.

Gaming versus desk work

The 30-degree target is a compromise. In practice the two use cases pull in opposite directions.

For gaming, closer is generally better. More of your field of view is filled by the game, which is most of what people mean by immersion. Sitting toward the minimum end is fine if the pixel density supports it.

For spreadsheets and code, the optimal distance is the one to use. Sitting too close means constantly moving your head to read the edges of the screen, and that is what produces neck ache by mid-afternoon.

Ultrawides complicate this, because their edges sit well outside your central vision. That trade-off is covered in our ultrawide guide.

What about eye strain?

Distance is only one part. The common advice is the 20-20-20 rule: every 20 minutes, look at something roughly 20 feet away for 20 seconds. It works because the strain comes largely from holding your focus at one fixed depth for hours, not from the screen itself.

Brightness matters too. A monitor much brighter than the room is tiring regardless of how far away it is. Match it roughly to your ambient lighting rather than running it at maximum.

Getting it right in two minutes

1. Measure your screen diagonally, corner to corner.
2. Multiply by 1.2 — that is your target distance in inches. Multiply by 0.0254 for metres.
3. Measure from your eyes, not from the front of the desk.
4. Adjust so the top of the screen sits at or just below eye level.

Or put your actual numbers into the viewing distance calculator and it will give you the full range.

Height matters as much as distance

Distance gets the attention, but height causes more of the aches. The top of the screen should sit at or just below eye level, so your gaze travels slightly downward across the panel. Looking up at a screen for hours is what produces the stiff neck.

Most stock monitor stands are too low for a desk of normal height. Books work. A proper riser or an arm works better, and an arm also solves the depth problem at the same time.

One thing people get backwards: raising a monitor so the middle is at eye level puts the top too high. Aim for the top edge.

Two monitors, and the angle between them

With a dual setup, decide which screen is primary. If one gets most of your attention, put it straight ahead and angle the second inward. Splitting the difference — both angled equally with the bezels dead centre — means you spend the day turning your head to read either one.

Keep both at the same distance from your eyes. Angling the second screen inward does this naturally; placing them flat in a line does not, because the outer edge of the side monitor ends up noticeably further away.

Monitors and televisions are not the same problem

Television guidance usually suggests sitting much closer relative to screen size — often around 1.5 times the diagonal for a 4K set. That is because you are watching video from a sofa, not reading text.

Text is the difference. Video tolerates a lower angular pixel density than small type does, which is why a 55-inch 4K TV at 2 metres is comfortable for films and unpleasant as a desktop.

If you are planning to use a TV as a monitor, work out the PPI first with the PPI calculator. Most large TVs land well below 90 PPI at desk distance.

The bottom line

Screen size sets where you should sit. Resolution sets how close you are allowed to get. A 27-inch monitor wants about 82 cm whether it is 1080p or 4K — the difference is that only one of them still looks sharp when you lean in.