Printable Snellen Chart (Free PDF)

[Answer-first: the standard letter chart used by eye doctors, sized to print accurately for 20 feet.]

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Print at 100% · check the 1-inch ruler · [file size]

Last updated 6 November 2026

How to use a Snellen chart at home

[Numbered steps: distance, lighting, one eye at a time, record the line]

[20/20, 20/40 etc. explained; link to /visual-acuity-test]

[Why print scale matters; 20 ft vs 10 ft version → /eye-charts/10-feet]

How far should you stand from a Snellen chart?+

What line is 20/20 on a Snellen chart?+

Can I use a Snellen chart on my phone screen?+