Correct posture in front of the computer: a practical guide to working without hurting your back
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Working in front of a computer seems like a quiet activity. You don't run. You don't lift weights. You don't exert yourself much.
And yet, many people end the day with back pain, neck tension, sore shoulders, or wrist discomfort.
The problem usually doesn't appear suddenly. It appears little by little.
- A desk that's too high.
- A screen that's too low.
- A poorly adjusted chair.
- Tense shoulders.
- Neck tilted forward.
- Eight hours repeating the same posture.
Ergonomics isn't about complicating your life. It's about preparing your workspace so your body doesn't have to adapt to a poorly configured setup.
In this guide, we explain how to maintain a correct posture in front of the computer, whether you work from home or in an office.
The perfect posture doesn't exist
There is no perfect posture that you can maintain for 8 hours. Even if you are sitting correctly, if you don't move throughout the day, your body will notice it.
The key isn't to remain frozen in an "ideal" position. The key is to work with a comfortable, well-aligned posture and change positions throughout the day.
Sitting. Standing. A short walk. A short break. Sitting again. Standing again.
Your workspace should help you move, not force you to remain still and sedentary.
That's why more and more people are using standing desks to alternate between sitting and standing work, without interrupting the workday.
How to sit correctly in front of the computer
Correct posture starts with the basics: chair, feet, back, arms, and screen.
When sitting, aim for this position:
- Your feet should rest naturally on the floor.
- Your knees should form an angle close to 90 degrees.
- Your back should be supported by the chair's backrest.
- Your shoulders should remain relaxed.
- Your elbows should be close to your body and form approximately a 90-degree angle.
- Your wrists should be straight when using the keyboard and mouse.
- The screen should be in front of you, not turned to one side, and more or less at eye level.
If you have to hunch your shoulders, stretch your arms too much, or tilt your neck down, something is improperly adjusted.
And if something is improperly adjusted for five minutes, it's not a big deal.
If it's improperly adjusted for five hours a day, every day, then it does matter.
Desk height matters more than it seems
A desk that's too high forces you to raise your shoulders.
A desk that's too low pushes you to slouch your back.
And a fixed desk rarely fits everyone well.
The ideal desk height depends on your height, your chair height, and whether you work sitting or standing.
As a simple reference: when resting your hands on the keyboard, your elbows should form an angle close to 90 degrees and your shoulders should be relaxed.
If you want to calculate it more precisely, you can consult our guide on the ideal desk height.
The advantage of a standing desk is clear: you don't have to adapt your body to the desk. You adjust the desk to your body.
That completely changes the work experience.
Correct monitor height
The monitor is often overlooked, and it's one of the most frequent mistakes.
If the screen is too low, you end up tilting your neck forward. If it's too high, you strain your eyes and cervical position.
The basic reference is this:
- The top of the screen should be approximately at eye level.
- The screen should be directly in front of you, not to the side.
- The distance between your eyes and the monitor should be, as a general reference, between 50 and 80 cm.
- Your gaze should fall slightly downwards, to avoid straining your neck.
If you work with a laptop, this last point is especially important. A laptop placed directly on the desk usually leaves the screen too low. For many people, the best solution is to use a stand to raise the laptop and work with an external keyboard and mouse.
A poorly positioned screen can ruin a good chair and a good desk.
Correct keyboard and mouse position
The keyboard and mouse should be close to your body.
You shouldn't have to stretch your arms forward to type.
Nor should you rest your wrists in a forced position.
Ideally:
- Your elbows should be close to your body.
- Your forearms should be approximately parallel to the floor.
- Your wrists should remain straight.
- The mouse should be at the same height as the keyboard.
- The keyboard should not be too far from the edge of the desk.
If you use the mouse a lot, avoid placing it far from the keyboard. That small repeated gesture hundreds of times a day can generate tension in your shoulder, neck, and forearm.
How to work standing with good posture
Working standing doesn't just mean raising the desk and continuing as before. Posture also matters.
When working standing in front of the computer:
- Keep your feet stably supported.
- Don't lock your knees.
- Distribute your weight evenly between both legs.
- Keep your back straight, without leaning over the desk.
- Adjust the desk height so your elbows are at about 90 degrees.
- Place the screen at the appropriate height.
And above all, don't turn working standing into another fixed posture for hours. Working standing makes sense when it's part of a dynamic routine. The idea isn't to replace eight hours of sitting with eight hours of standing. The idea is to alternate.
If you have questions about timings, you can read our guide on how many hours it is recommended to work standing.
Table: bad ergonomics vs. good ergonomics
A simple way to review your workstation is to compare what usually goes wrong with the recommended adjustment.
| Element | Bad Adjustment | Good Adjustment |
|---|---|---|
| Desk height | Desk too high or too low, forcing you to slouch your back or raise your shoulders. | Desk adjusted so elbows are close to 90 degrees and shoulders remain relaxed. |
| Monitor position | Screen too low, too close, or placed to the side, causing neck and eye strain. | Top of the screen approximately at eye level, in front of you and about 50-80 cm away. |
| Chair | Feet dangling, back unsupported, or chair too high/low for the desk. | Feet resting on the floor, knees close to 90 degrees, and back well supported by the backrest. |
| Keyboard and mouse | Keyboard too far away, mouse separated, or wrists bent when typing. | Keyboard and mouse close to the body, forearms relaxed, and wrists in a neutral position. |
| Movement during the day | Remaining seated for hours without changing posture. | Alternating between sitting, standing, and short breaks throughout the day. |
Frequent mistakes in front of the computer
There are mistakes that are repeated in almost all workstations.
1. Shrugging your shoulders
This usually happens when the desk is too high or the chair is too low.
At first, it seems trivial. After several hours, your trapezius muscles feel it.
2. Tilting your head forward
This is one of the most common mistakes.
It usually happens when the screen is too low or too far away.
3. Sitting on the edge of the chair
When you don't use the backrest, your back works more than it should.
A good chair helps, but only if you use it correctly.
4. Having the laptop too low
Very common in remote work.
A laptop is convenient, but it's not always ergonomic if used for many hours without external support.
5. Not moving for hours
This is the big mistake.
You can have a fairly correct posture and still end up uncomfortable if you spend the entire day without changing position.
Quick checklist to review your workstation
Do this review in less than a minute:
- Are your feet fully supported on the floor?
- Do your knees form an angle close to 90 degrees?
- Is your back supported by the backrest?
- Are your shoulders relaxed?
- Are your elbows close to your body?
- Are your wrists straight?
- Is the screen in front of you?
- Is the top of the monitor approximately at eye level?
- Are the keyboard and mouse close by?
- Do you change your posture during the workday?
If you answer "no" to several of these questions, your workstation probably needs adjustments.
You don't need to change everything at once.
Start with the basics: chair height, desk height, and screen position.
Why a standing desk helps improve posture
A standing desk doesn't force you to work in just one way. It allows you to adjust.
And that's exactly what a good workstation needs.
You can lower the desk to work sitting with your elbows properly placed.
You can raise it to work standing during a call or a task requiring concentration.
You can alternate positions without stopping work.
You can adjust the height if someone else uses the same desk.
And you can avoid the typical problem with fixed desks: that the desk has a standard height, but people are not standard.
If you are reviewing your workstation and want a more adaptable desk, you can check out our collection of standing desks.
Posture, comfort, and productivity go hand in hand
It's hard to concentrate when you're uncomfortable.
When your back hurts, you adjust your chair.
When your neck is strained, you move the screen.
When your shoulders tense up, you change your posture.
All of that interrupts.
Good ergonomics isn't just about "sitting better." It's about working with less friction.
A well-configured workstation allows you to think less about your back, your neck, or your desk, and more about what you're doing.
That's the difference.
It's not a luxury. It's judgment.
Conclusion: your desk should work for you
The correct posture in front of the computer doesn't depend on just one thing.
It depends on the chair, the desk, the screen, the keyboard, the mouse, and above all, your ability to move throughout the day.
You don't need a perfect posture.
You need a workspace that doesn't force you to strain your body for hours.
Adjust the height. Position the screen correctly. Relax your shoulders. Support your feet. Change your posture.
And if you work many hours in front of the computer, give your workstation the importance it deserves.
Because your desk isn't just another piece of furniture.
It's where you spend a good part of your week.
