Health & Body

Is Your Desk the Right Height? How to Check and Fix It

Is your desk the right height? Learn the elbow test for correct desk height, the signs a desk is too high or too low, and simple fixes for either problem.

A person seated at a desk with forearms level and elbows bent at 90 degrees

Key takeaways

  • Fit the desk to your elbows, not a number. When seated upright, your forearms should rest level with the desk and elbows bent near 90 degrees.
  • About 70-75 cm suits many people. Standard desks sit around there, but the right height depends on your body, so test it.
  • Too high means raised, aching shoulders. You hunch up or perch to reach the keys, straining the neck and shoulders.
  • Too low means a rounded back and bent wrists. You slump forward and the wrists angle up to type.
  • Fix the chair first, then the desk. Raise the chair and add a footrest, or raise the desk on risers if it is too low.

Your desk is the right height when you can sit up straight with relaxed shoulders and your forearms rest level with the desk surface, elbows bent at about 90 degrees and wrists flat. For many people that falls around 70 to 75 cm, but the number matters less than the elbow test. If you have to shrug your shoulders up to reach the keys, the desk is too high; if you slump forward and your wrists bend upward, it is too low. Fix it by adjusting the chair first, then the desk.

Why desk height matters

The desk sets the height of your hands, and your hands set the position of everything upstream: wrists, elbows, shoulders and neck. Get the surface wrong and the strain radiates outward. A surface slightly too high keeps your shoulders tensed upward all day. A surface slightly too low rounds your back and cocks your wrists. Neither feels dramatic in the first hour, which is exactly why it goes unnoticed until the aches arrive.

Because a desk is usually a fixed object, people adapt their body to it rather than the other way round. The goal is to reverse that: make the furniture fit you.

It is worth stressing how small the error can be. A desk just two or three centimetres too high does not announce itself; you simply hitch your shoulders a fraction to type, and keep them there all day. Multiply that tiny compromise by thousands of keystrokes and eight hours, and it becomes the dull shoulder ache you cannot explain. The checks below cost a few minutes once, and they catch exactly this kind of invisible mismatch before it turns into a daily complaint.

The elbow test

Forget tape measures first and check your body:

  1. Sit all the way back in your chair with your feet flat and shoulders relaxed.
  2. Let your upper arms hang straight down and bend your elbows to about 90 degrees.
  3. Your forearms should now float roughly level with the desk surface, wrists straight.

If your forearms meet the desk comfortably at that angle, the height is right. If you have to lift your shoulders or drop your elbows below 90 degrees to reach, it is wrong, and the direction of the error tells you what to fix.

Signs your desk is too high or too low

ProblemWhat you feel and doTypical fix
Desk too highShoulders shrug up, you perch on the seat edge, wrists bend up, neck and shoulder tensionRaise chair and add a footrest, or lower the desk if adjustable
Desk too lowBack rounds, you lean and slump forward, elbows open past 90 degrees, wrists angle upRaise the desk on risers, or lower the chair until forearms meet it
Desk just rightForearms level, elbows near 90 degrees, shoulders relaxed, wrists flatLeave it; focus on movement and breaks

A quick visual check helps too: from the side, your forearm and the desk should form roughly a straight line, and your shoulders should sit low and even, not hitched toward your ears.

How to fix it

Work from the easiest adjustment to the hardest.

Start with the chair

The chair is almost always adjustable, so set it first. Raise or lower it until your forearms are level with the desk and your elbows are near 90 degrees. If raising the chair lifts your feet off the floor, add a footrest (a sturdy box or a ream of paper works) so your thighs stay supported and your knees stay near a right angle. For many people, the chair alone solves the problem.

Then adjust the desk

If the chair cannot get your forearms level, change the surface:

  • Too low: raise the desk on furniture risers under the legs, or lift your screen and work surface with a stand. A height-adjustable desk is the clean long-term answer.
  • Too high and not adjustable: raise the chair as above and use a footrest, or consider a keyboard tray mounted below the surface to bring the typing height down.

Set the screen separately

Desk height fixes your hands, not your eyes. Once the surface is right, position the monitor so the top of the screen is near eye level and about an arm's length away, so your neck stays neutral. The two adjustments are independent, which is why a laptop on a bare desk forces a compromise; see our guide to laptop ergonomics for how to separate them.

Standing desks follow the same rule

If you stand to work, apply the elbow test on your feet: forearms level with the surface, elbows at about 90 degrees, shoulders relaxed. The right standing height is higher than the right seated height, so set it each time you raise the desk rather than trusting a single preset. Deciding whether to sit or stand at all is a separate question, covered in standing desk vs sitting.

The best desk height is the one you never think about, because nothing is reaching, shrugging or slumping to meet it.

The takeaway

Do not chase a magic number. Sit tall, drop your shoulders, bend your elbows to 90 degrees, and see whether your forearms meet the desk. Adjust the chair first and the desk second, add a footrest if your feet lift, and set the screen to eye level afterward. A few minutes of adjustment, once, prevents the slow accumulation of neck, shoulder and wrist strain that a mismatched desk quietly delivers every day.

Frequently asked questions

What is the correct desk height?

There is no single correct number because it depends on your height, but a common range for seated desks is about 70 to 75 cm. The reliable test is your body, not a tape measure: sit upright with your shoulders relaxed, and your forearms should rest roughly level with the desk surface with your elbows bent at about 90 degrees. Adjust from there.

How do I know if my desk is too high?

A desk that is too high forces you to raise your shoulders toward your ears or perch on the edge of your seat to reach the keyboard. You may feel tension across the shoulders and the base of the neck, and your wrists may bend upward. If you keep hitching your shoulders up to type, the surface is too high for you.

How do I fix a desk that is too low?

Most desks cannot be lowered, so a too-low desk is harder, but you have options. Raise the desk itself on sturdy risers or furniture risers under the legs, use an adjustable laptop or monitor stand to lift the screen, and lower your chair so your forearms meet the surface. If none of that works, a height-adjustable desk is the lasting fix.

Should I raise my chair or lower my desk?

Adjust the chair first because it is the easiest to change. Raise the chair until your forearms are level with the desk and elbows are near 90 degrees. If that leaves your feet dangling, add a footrest so your thighs stay supported. Only change the desk height if the chair alone cannot get your forearms level.

Does desk height matter for a standing desk too?

Yes, the same elbow principle applies. When standing, the desk should let your forearms rest level with the surface and your elbows bend at about 90 degrees, with shoulders relaxed. A standing desk that is too high makes you shrug, and one too low makes you lean forward, so set it to your elbows each time you switch.

Sources

  1. Mayo Clinic. Office ergonomics: Your how-to guide. 2023. www.mayoclinic.org/healthy-lifestyle/adult-health/in-depth/office-ergonomics/art-20046169
  2. Occupational Safety and Health Administration (OSHA). Computer Workstations eTool: Good Working Positions. www.osha.gov/etools/computer-workstations/positions
  3. Cornell University Ergonomics Web (CUergo). Seated and standing workstation guidelines. ergo.human.cornell.edu/ergoguide.html
  4. NHS. How to sit at a desk correctly. www.nhs.uk/live-well/healthy-body/how-to-sit-correctly/

This article is for general information and does not replace advice from a doctor. If you have persistent sleep or health problems, consult a qualified professional.