Readability Calculator

How it works:
Copy and paste your text into the form below to see the estimated minimum grade level required to comfortably read your content. Grade level is calculated using a special combination of a SMOG calculator and a Flesch-Kincaid readability test.

Max characters: 6500
(we respect your privacy and copyright, your content will not be saved to any of our servers)
Age UK Years US/International Grades
4 - 5 Reception Pre-Kindergarten
5 - 6 Year 1 Kindergarten
6 - 7 Year 2 1st Grade
7 - 8 Year 3 2nd Grade
8 - 9 Year 4 3rd Grade
9 - 10 Year 5 4th Grade
10 - 11 Year 6 5th Grade
11 - 12 Year 7 6th Grade
12 - 13 Year 8 7th Grade
13 - 14 Year 9 8th Grade
14 - 15 Year 10 9th Grade (Freshman)
15 - 16 Year 11 10th Grade (Sophomore)
16 - 17 Year 12 / Lower 6th 11th Grade (Junior)
17 - 18 Year 13 / Upper 6th 12th Grade (Senior)