MedCalc
AI
← All Calculators
AD · Google AdSense
Visual Acuity Converter
Convert visual acuity between Snellen, decimal and LogMAR formats used in ophthalmology.
⚠️ For educational purposes only. Always consult a qualified healthcare professional.
Snellen → LogMAR
LogMAR → Snellen
Snellen Fraction
6/6 (20/20) — Normal
6/9 (20/30)
6/12 (20/40)
6/18 (20/60)
6/24 (20/80)
6/36 (20/120)
6/60 (20/200)
3/60 (20/400)
1/60 (20/1200)
LogMAR Value
Convert
–
Conversion Result
Snellen
–
Decimal
–
LogMAR
–
Description
–