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Desk height calculator

Enter your height. Get your chair, desk, keyboard and monitor heights, sitting or standing, with the reason behind each number.

5 ft 9 in
4 ft 10 in6 ft 8 in
You work
Shoes on
Units
Can you change your desk's height?
Get a to-do list for your desk (optional)

Measure from the floor to the top of each one. Leave a box empty if you don't know.

How to measure

From the floor to the front edge of the seat, where the backs of your knees rest.

From the floor to the top of the desk.

From the floor to the top edge of the screen.

Sit relaxed with your arms by your sides and your elbows bent to 90°. Measure from the floor to the underside of your elbow.

Your numbers, sitting

  • Chair seat

    16.5–19 in

    Feet flat, thighs level.4

  • Desk and keyboard

    24.5–28 in

    Level with your elbows, bent at about 90°.1

  • Top of monitor

    47–49.5 in

    At or just below your eyes.3

  • Screen distance

    20–30 in

    About an arm's length away.3

These are starting points from your height, worked out from the measurements of about 6,000 adults. For about 9 in 10 people, the right height falls inside these ranges. Bodies differ, so trust your elbows over the number: if your shoulders lift or your wrists bend, adjust. Know your elbow height? Enter it above for a closer number.4

What's the right desk height?

The short answer: your desk is the right height when your forearms rest level and your elbows bend at about 90°, with your shoulders relaxed. For most adults sitting down, that's between 23 and 28 inches (58 to 72 cm). Fixed office desks are usually built at least 29.5 inches (75 cm) tall, which is why so many people sit at a desk that's too high.3,4

90°poxture.com
Elbows level with the desk.
Eyes level with the top of the screen.
Feet flat on the floor.

Standing desk height

Set the desk so your keyboard sits at your elbows while you stand. That puts the desk top about 1 inch (2.5 cm) below the bend. Switch between sitting and standing through the day. The switch above gives you both heights.2

How high should your monitor be?

The top line of the screen sits at or just below your eyes, and the screen is about an arm's length away. If you catch yourself looking down, read the Looking down guide.3

Chair height

Feet flat, thighs level, knees about level with your hips. If the desk can't move, raise the chair and rest your feet on a box or a step stool.4

Desk height chart

Find your height. Shoes on. All heights are measured from the floor, in inches.

Your heightChair seatDesk, sittingDesk, standingMonitor top, sitting
4′10″14.522.53541
4′11″1522.53641.5
5′0″152336.542.5
5′1″15.523.53743
5′2″15.5243843.5
5′3″162438.544.5
5′4″16.524.53945
5′5″16.5254045.5
5′6″172540.546
5′7″1725.54147
5′8″17.5264247.5
5′9″1826.542.548
5′10″1826.54349
5′11″18.5274449.5
6′0″18.527.544.550
6′1″1927.54551
6′2″19.5284651.5
6′3″19.528.546.552
6′4″20294753
6′5″20294853.5
6′6″20.529.548.554
6′7″21304954.5
6′8″21305055.5

Using a laptop?

A laptop's screen and keyboard are joined, so one of them is always at the wrong height. Raise the laptop on a stand to put the screen at eye level, then type on a separate keyboard and mouse at elbow height. More laptop posture tips.

Your desk is set. Staying in it is the hard part.

An hour into work, your face creeps toward the screen, your head drops and your shoulders round. This page checks once. Poxture App checks your posture all day from the menu bar, and a soft glow at the top of the screen tells you what to fix. No pictures, ever.

Download Poxture App for Mac

Needs an Apple Silicon Mac (M1 or later) with a built-in camera or an external webcam, and macOS 15 or later.

What a posture app for Mac can check

Questions

How high should my desk be?

Level with your elbows. Sit with your shoulders relaxed and your arms by your sides, then bend your elbows to about 90°. The desk top, or your keyboard, belongs at that height. For most adults sitting down that's 23 to 28 inches (58 to 72 cm), lower than most office desks. The calculator above gives your own range.

Is my desk too high?

It is if your shoulders lift while you type, or your wrists bend upward to reach the keys. Raise your chair until your elbows are level with the desk. If your feet then hang, put a box or a step stool under them, so your thighs stay level and your feet rest flat.

How high should my monitor be?

Put the top line of the screen at or just below your eyes, so you look slightly down at the middle of it. Keep it about an arm's length away, 20 to 30 inches (50 to 75 cm). If you wear bifocals or progressives, set it a little lower so you don't tip your head back.

How far should my monitor be from my eyes?

About an arm's length, 20 to 30 inches (50 to 75 cm). Sit back and reach out: your fingertips should just touch the screen. A larger screen can sit a little farther. If you lean in to read, make the text bigger instead of moving closer. Our guide to sitting too close has more.

What height should my chair be?

Set it so your feet rest flat on the floor and your thighs are about level, with your knees near hip height. Then check your desk: your elbows should line up with it. If they're below the desk, raise the chair and put a box or step stool under your feet.

Where should my keyboard be?

At elbow height, close enough that your upper arms hang by your sides. Your wrists should stay straight, not bent up or down. If your desk is too high for that, a keyboard tray under the desk, or a higher chair with something under your feet, brings the keys down to your elbows.

My desk doesn't adjust. What do I change?

Change everything around it. Raise your chair until your elbows are level with the desk, then put a box or a step stool under your feet. Lift your screen with a monitor stand so its top meets your eyes. Choose "No, it's fixed" in the calculator, and it works this out for you.

Do I need different heights for a laptop?

Yes, because a laptop's screen and keyboard are joined. If the keyboard is at elbow height, the screen is too low and you look down. Raise the laptop on a stand, or a stack of books, to bring the screen to eye level, then use a separate keyboard and mouse at elbow height.