Reading Level Calculator
Flesch reading ease and grade level.
Enter your values
Enter the words you are working with.
Enter the sentences you are working with.
Enter the syllables you are working with.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Reading ease
- 57.9
- Grade level
- 9.8
- Words per sentence
- 18.6
- Difficulty
- Fairly difficult
Quick answer
Flesch Reading Ease scores text 0–100, where higher means easier to read.
FRE = 206.835 − 1.015(w/s) − 84.6(sy/w)
At a glance
| What it does | Flesch reading ease and grade level. |
|---|---|
| Category | Education |
| Inputs needed | Words, Sentences, Syllables |
| Main output | Reading ease |
| Formula | FRE = 206.835 − 1.015(w/s) − 84.6(sy/w) |
| Cost | Free — no sign-up, no download |
How to use the Reading Level Calculator
- 1Count words, sentences and syllables in a sample.
- 2Enter each count.
- 3Aim for 60–70 ease for general audiences.
Inputs explained
- Words
- Enter the words you are working with.
- Sentences
- Enter the sentences you are working with.
- Syllables
- Enter the syllables you are working with.
Worked example
Using the values the calculator loads with:
Inputs
- Words820
- Sentences44
- Syllables1260
Results
- Reading ease57.9
- Grade level9.8
- Words per sentence18.6
- DifficultyFairly difficult
Frequently asked questions
What score should web copy hit?
60–70 reading ease, around grade 8.
How do I count syllables?
Most word processors and readability tools report it automatically.
What do I need to enter into the Reading Level Calculator?
Just 3 values: words, sentences, syllables. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Reading Level Calculator work out the answer?
Flesch Reading Ease scores text 0–100, where higher means easier to read. It applies the formula FRE = 206.835 − 1.015(w/s) − 84.6(sy/w) and shows the working so you can check each step by hand.
Is the Reading Level Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.