Tech Neck: How Much Weight Your Neck Carries When You Look at Your Phone
The more you tilt your head, the more your neck has to carry. In one study, a head weighing 10–12 lb upright put about 27 lb of force on the neck at a 15° tilt — and about 60 lb at 60°. Raising your phone toward eye level instead of bending over it is the first step to preventing tech neck.
How much your neck carries
In a 2014 study, spine surgeon Dr. Kenneth Hansraj used a computer model to calculate the stress on the cervical spine at different head angles.
| Head angle | Force on the neck | Metric |
|---|---|---|
| 0° (upright) | 10–12 lb | ≈ 4.5–5.4 kg |
| 15° | 27 lb | ≈ 12 kg |
| 30° | 40 lb | ≈ 18 kg |
| 45° | 49 lb | ≈ 22 kg |
| 60° | 60 lb | ≈ 27 kg |
Sixty degrees is a typical angle when looking at a phone. According to coverage of the study, people spend an average of 2–4 hours a day with their heads tilted like this.
What causes tech neck?
When your head sits forward of your body for long stretches, the muscles of your neck and shoulders have to stay tense to hold it up. Make it a habit and neck and shoulder aches become frequent.
Small screens and small text pull your face toward the screen, and your head drifts forward with it. That's why screen distance and neck posture go together.
Phone posture that helps
- Raise your phone toward eye level. Lower your eyes, not your head.
- Keep your ears over your shoulders when sitting or standing.
- Pull your shoulder blades back so your upper back doesn't round.
- Don't lean toward the screen — increase the font size instead.
- During long sessions, look up and stretch your neck now and then.
Screen Distance alerts you when your phone is closer than 30 cm (12 in). That moment you lean in is a good cue to fix your posture.
When to see a doctor
If neck or shoulder pain lasts more than a few weeks, or you notice numbness or weakness in your arms, it may be more than posture. See a doctor or physical therapist.
FAQ
How much weight does your neck carry when you look at your phone?
According to a 2014 study by Dr. Kenneth Hansraj, about 27 lb at a 15° head tilt and about 60 lb at 60°, compared with 10–12 lb upright.
How can I prevent tech neck?
Raise your phone toward eye level, keep your ears over your shoulders, and avoid leaning toward the screen.
Sources
This article is general health information, not a diagnosis or treatment. If eye discomfort persists, see an eye doctor.
