Free Printable Snellen Eye Chart (3 Metre Version)
The Snellen chart is one of the most widely used tools for checking visual sharpness. First designed in 1862 by Dutch ophthalmologist Herman Snellen, it remains the global standard for quick vision screening.
This free PDF version is scaled specifically for use at a distance of 3 metres. It’s suitable for quick checks at home. Simply download, print at full size (A4), and place it on a wall at eye level.
How to Use This 3 Metre Snellen Chart
1. Print the chart at 100% scale (do not resize or fit to page).
2. Place the chart on a flat wall in a well-lit room, at the eye level of the person being tested.
3. Measure a distance of exactly 3 metres (about 10 feet) from the wall and mark the spot to stand.
4. Cover one eye with your hand or a card (avoid pressing on the eye).
5. Read aloud the smallest line of letters you can see clearly.
6. Have a helper note down the last line read with at least half the letters correct.
7. Switch to the other eye and repeat the test.
Understanding the Results
Each line corresponds to a level of visual acuity. If you can read most letters on a line but struggle with smaller ones, your vision is approximately at that level. For example:
- If you manage over half the letters on a line, that line is your visual score.
- If you read an entire line plus a few on the next, record your score as that line “plus extras.”
Important Disclaimer
This chart is only a basic screening tool. It cannot check eye coordination, depth perception, or detect serious eye diseases such as glaucoma or diabetic eye problems. For a full assessment of your eye health, always book a comprehensive exam with an optometrist or ophthalmologist.
The Snellen Chart Download
- Free printable Snellen eye chart (A4 PDF)
- Scaled for use at 3 metres
- Simple black and white design for easy printing
- Completely free for personal use
Download Your Snellen Chart:
FAQs
Is this Snellen chart free to use?
Yes. You can download and print the 3 metre Snellen chart PDF at no cost. It’s free for personal, non-commercial use.
Why is this version scaled for 3 metres?
Standard UK eye tests are done at 6 metres, but many homes and small rooms cannot accommodate this distance. A 3 metre version is scaled so you can still check vision accurately in smaller spaces.
What’s the history of the Snellen chart?
The Snellen chart was introduced in 1862 by Herman Snellen. Its use of rows of letters decreasing in size made vision testing easy to standardise. Today, it remains the most familiar eye chart worldwide.