Readability Score Calculator
Paste any English text to get its Flesch reading ease score and Flesch–Kincaid grade level, with what the score means and how to make it easier to read.
A few paragraphs give a steadier score than a single sentence.
Flesch reading ease
103.3 very easy
- Flesch–Kincaid grade level
- 0.7 US school grade
- Words per sentence
- 7.3
- Words
- 22 in 3 sentences
A reading ease of 103 counts as very easy on Flesch's scale.
How it's worked out
- Counts
22 words, 3 sentences, 25 syllables7.33 words a sentence, 1.14 syllables a word - Reading ease
206.835 − 1.015 × 7.33 − 84.6 × 1.136103.3 - Grade level
0.39 × 7.33 + 11.8 × 1.136 − 15.590.7
What the reading ease score means
| Score | Reads as |
|---|---|
| 90 and up | Very easy |
| 80 to 89 | Easy |
| 70 to 79 | Fairly easy |
| 60 to 69 | Standard |
| 50 to 59 | Fairly difficult |
| 30 to 49 | Difficult |
| below 30 | Very difficult |
- Syllables are counted by a rule of thumb, so scores can differ slightly from other tools. The formulas are made for English text.
The formulas
Reading ease = 206.835 − 1.015 × (words ÷ sentences) − 84.6 × (syllables ÷ words). Grade level = 0.39 × (words ÷ sentences) + 11.8 × (syllables ÷ words) − 15.59. Syllables are counted with a rule of thumb based on vowel groups.
Questions people ask
What is a good Flesch reading ease score?
On Flesch's scale, 60 to 69 counts as standard, 70 to 79 fairly easy and 80 or more easy. The higher the score, the easier the text.
What is the Flesch–Kincaid grade level?
The US school grade a reader needs to follow the text. A grade of 8 suits most 13 to 14 year olds.
How do I raise my score?
Use shorter sentences and shorter words. Long sentences and words with many syllables lower the score most.
Why is my score different in another tool?
Tools count syllables and sentences in slightly different ways, so scores can differ by a few points.
About this calculator
Formula and rules last checked 10 November 2026Written and tested by the CalculatorDex teamReport a problem
Sources: Readability of the 100 most-cited neuroimaging papers (2018), Frontiers in Human Neuroscience: both formulas · Ohio State University: Flesch reading ease scale