Text & Content
Readability Calculator - Calculate text readability using multiple formulas
Calculate text readability using multiple formulas
Formulas and edge cases are reviewed against authoritative references before publication. For methodology, editorial standards, or corrections, use the links below.
Frequently asked questions
What is a good readability score?
Flesch 60-70 (8th grade) for general audience. Higher = easier. Web content aims for 50-60.
Which formula should I use?
Use multiple and average. Flesch-Kincaid is most common. SMOG is best for health content.
How are syllables counted?
Algorithm estimates based on vowel patterns. May have 5-10% error vs manual count.
Related tools
About this tool
Inputs
- Text to Analyze
Results
- Flesch Reading Ease
- Flesch-Kincaid Grade
- Gunning Fog Index
- SMOG Index
- Coleman-Liau Index
- Automated Readability
- Average Grade Level
- Recommendation
- Very easy
- Easy
- Fairly easy
- Standard
- Fairly difficult
- Difficult
- Very difficult
- Provide text to analyze
Whether you are planning ahead or double-checking existing numbers, the Readability Calculator delivers instant answers from the figures you provide. You supply text to analyze, and the tool calculates flesch reading ease, flesch-kincaid grade, gunning fog index and other key metrics from those figures. Character encoding matters: what looks the same on screen may differ in byte representation. From students to professionals, anyone who needs to calculate text readability using multiple formulas benefits from getting an instant, verifiable answer. Flesch 60-70 (8th grade) for general audience. Higher = easier.
Web content aims for 50-60. Check character count when writing for platforms with strict limits (social media, meta descriptions). Experiment with different inputs to compare scenarios. Seeing how the result shifts tells you which factors matter most. Word count is typically defined as sequences of non-whitespace characters separated by whitespace. Text transformation tools handle formatting changes that would be tedious and error-prone to do by hand.