Reading Level Calculator
Flesch-Kincaid Grade Level
—
Flesch Reading Ease (0-100)
—
Difficulty Level
—
Understanding Reading Level Scores
The Flesch-Kincaid Grade Level formula estimates the US school grade needed to understand a text: Grade = 0.39 × (words/sentences) + 11.8 × (syllables/words) - 15.59. A score of 8.0 means an eighth-grader should understand the text.
The Flesch Reading Ease score ranges from 0 (hardest) to 100 (easiest): 90-100 is very easy (5th grade), 60-70 is standard (8th-9th grade), and below 30 is very difficult (college graduate level). Most popular content targets a reading ease of 60-70.
These formulas use sentence length and syllable count as proxies for complexity. Shorter sentences and simpler words yield easier readability scores. Most newspapers write at a 6th-8th grade level, while academic papers often score at college level or above.
Frequently Asked Questions
What is a good Flesch reading ease score?
60-70 is considered standard and suitable for most adults. Web content often targets 60-80. Academic papers may score 20-40.
What grade level should I write at?
For general audiences, aim for 6th-8th grade level. This doesn't mean dumbing down content — it means using clear, concise language.
How do I count syllables?
Count vowel sounds in each word. "Calculate" has 3 syllables (cal-cu-late). Silent e's don't count. Compound vowel sounds (ea, ou) count as one.
Are these formulas perfect?
No. They measure surface features (word/sentence length) but can't assess conceptual difficulty, vocabulary context, or reader expertise. Use them as general guides.