Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Language
Grade Level Readability Calculator
Score the reading difficulty of any text using four professional readability formulas — Gunning Fog, Flesch-Kincaid, SMOG, and Coleman-Liau. Use it to ensure your content matches your audience's expected reading level before publishing.
Fill in the required fields to see your result.
Language
Flesch Reading Ease Score Calculator
Compute the Flesch Reading Ease score from word count, sentence count, and syllable count — the most widely used readability formula in English. Scores from 0 (very difficult) to 100+ (very easy) tell you the education level a typical reader needs to understand the text.
Fill in the required fields to see your result.
Key differences
| Grade Level Readability Calculator | Flesch Reading Ease Score Calculator | |
|---|---|---|
| Category | Language | Language |
| Inputs required | 5 | 3 |
| Result | Grade Level (grade) | Reading Ease Score |
| What it does | Score the reading difficulty of any text using four professional readability formulas — Gunning Fog, Flesch-Kincaid, SMOG, and Coleman-Liau. Use it to ensure your content matches your audience's expected reading level before publishing. | Compute the Flesch Reading Ease score from word count, sentence count, and syllable count — the most widely used readability formula in English. Scores from 0 (very difficult) to 100+ (very easy) tell you the education level a typical reader needs to understand the text. |