How high should a desk be?

Most desk-height problems are not really about the desk. They start at your elbows and your eyes, and the desk just has to follow. The short version: your forearms should be roughly parallel to the floor with your elbows near 90 degrees, your shoulders relaxed, your feet flat, and the top of your screen close to eye level. Hit those four things and the actual number on the desk legs almost takes care of itself.

That said, people want a number to start from, so here it is. For someone around 5 foot 10, a seated desk usually lands near 29 inches and a standing position near 43 to 44 inches. Those are starting points, not laws. Below I will walk through how to find your own numbers, why a single fixed height fails most people, and how to dial it in once the desk is in front of you.

The four things that actually set your height

Forget the desk for a second. Sit in your chair the way you actually sit and check these, in order. The desk height is whatever makes all four true at the same time.

• Elbows around 90 degrees. With your upper arms hanging straight down and shoulders loose, your forearms should rest roughly level with the desk surface. If you are reaching up to type, the desk is too high. If your shoulders slump and your wrists bend up to reach the keys, it is too low.
• Shoulders relaxed, not shrugged. This is the one people miss. A desk that is even an inch too high makes you hike your shoulders all day, and you feel it in your neck by 3pm.
• Feet flat on the floor. Thighs roughly parallel to the ground, knees near 90 degrees. If your chair is set for the desk and now your feet dangle, that is a sign you raised the chair to fix a desk that is too tall. A footrest is a fine patch, but a desk you can lower is better.
• Top of the monitor near eye level. When you look straight ahead, your eyes should land on the top third of the screen, so you glance down slightly to read. The desk sets your arms, the monitor placement sets your neck, and those are two separate adjustments. I go deeper on the screen part in the monitor height guide.

If a number and your body disagree, your body wins. Always.

Seated desk height by your height

Here is a rough seated starting point. These assume a standard chair set so your feet are flat and your elbows are near 90 degrees. Treat them as a place to begin, then adjust by feel.

Notice the problem here. A fixed desk from a furniture store is almost always 29 to 30 inches, which is tuned for a person near 5 foot 10. If you are shorter or taller, that desk is wrong for you out of the box, and you end up compensating with the chair, which throws off your feet. This is exactly why a height-adjustable desk solves more than it seems to. If you are well above average, the fit gap is bigger and worth reading up on in our standing desk guide for tall people.

Standing desk height by your height

Standing height is a different number, and a bigger one than people expect. The same elbow rule applies: forearms roughly level, shoulders down, no reaching. For a 5 foot 10 person that usually means somewhere near 43 to 44 inches. Here is a rough table to start from.

This is the part that catches people buying a converter or a cheap riser. Many of them top out around 40 to 47 inches at full extension, and if you are tall, that ceiling means you never actually reach a comfortable standing height. Real electric desks like the FlexiSpot E7 (roughly $400 to $600) or the Uplift V2 climb high enough for almost everyone and let you save two memory presets, one for sitting and one for standing. That memory feature matters more than it sounds, because a desk you have to crank by hand is a desk you stop adjusting after week two. If you want the full picture of options, start at our best standing desks roundup.

Why one fixed height never works

Even if you nail your seated number perfectly, sitting at it for eight hours straight is still not the goal. Your body wants to change positions. The whole point of an adjustable desk is to let you alternate, sit for a while, stand for a while, sit again. Standing all day is its own mistake and can leave your feet, knees and lower back sore, so do not swing from one extreme to the other.

A reasonable rhythm is something like 30 to 45 minutes in one position, then switch when you notice yourself fidgeting or stiffening up. There is no magic ratio. Good movement and varied posture may help you feel less stiff and more comfortable through a long day, but a desk is a tool, not a treatment, and it will not fix a problem on its own. If you want the evidence-based view on the sit versus stand question, I broke it down in standing desk versus sitting. And if you are not sure whether to replace your desk or just lift the one you have, the standing desk versus converter comparison covers the tradeoff.

How to dial it in once the desk arrives

Numbers get you close. The last inch is feel. Here is the order I use to set up any new desk.

• Set the chair first. Adjust seat height so your feet are flat and your thighs are level. The chair is your foundation, so lock it in before you touch the desk. A good ergonomic chair makes this much easier, and our best office chairs picks cover where to look.
• Raise or lower the desk to your elbows. Sit naturally, drop your shoulders, and bring the desk to where your forearms rest level. Type a few lines. Your wrists should be neutral, not bent up or down.
• Now fix the monitor, separately. Get the top of the screen to about eye level and the screen roughly an arm's length away. A monitor arm with a VESA mount makes this trivial and clears desk space at the same time, which is why I almost always recommend one over a stack of books.
• Save your presets. If your desk has memory buttons, set one for sitting and one for standing right away, and verify the standing number against the table above by checking your elbows while you stand.
• Re-check after a week. Your first guess is usually a touch off. Tweak by half an inch at a time. Small changes feel surprisingly different.

Once those pieces line up, the rest of the room is worth a pass too. Lighting, keyboard position and reach all add up, and I walk through the whole workstation in the ergonomic home office setup guide. If your goal is to stop a nagging ache, also be honest with yourself about whether it is the desk or something that needs a professional, which I get into in our notes on chairs for back pain.