Flesch Reading Ease

Flesch Reading Ease is a metric that measures the readability of a text based on two factors:

• Sentence length determined by the average number of words in a sentence.
• Word length determined by the average number of syllables in a word.

The score ranges from 0 to 100, with higher scores indicating easier readability. Here's what the scores mean:

Value	School level	Student age range	Notes
100.00 - 90.00	5th grade	11	Very easy to read. Easily understood by an average 11-year-old student.
90.0 - 80.0	6th grade	11-12	Easy to read. Conversational English for consumers.
80.0 - 70.0	7th grade	12-13	Fairly easy to read.
70.0 - 60.0	8th grade - 9th grade	13-15	Standard, plain English. Easily understood by 13- to 15-year-old students.
60.0 - 50.0	10th grade - 12th grade	15-18	Fairly difficult to read.
50.0 - 30.0	College	18-19	Difficult to read.
30.0 - 0.0	College graduate	22-23	Very difficult to read. Best understood by university graduates.

Since it's based on the American Education system, school levels and age ranges may be inaccurate for non-English languages. However, it's still possible to compare the relative readability of two topics written in the same language.

If a metric value is zero, make sure that the project language matches the content language and check the punctuation.

Check out the other readeability metrics:

• Flesch-Kincaid Grade Level
• Coleman-Liau Index
• Gunning Fog Index
• Automated Readability Index
• Linsear Write
• SMOG Index
• FORCAST Grade
• New Dale-Chall Score
• Average Grade

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