How to use the syllable counter
- Type or paste a word, a line or a whole passage into the Text box.
- The totals update as you type: syllables, words, sentences, and syllables per word.
- Read the reading ease and grade level scores. Both are based on how long your sentences are and how many syllables your words have.
- Scroll to the Syllables in each word table to check any word the estimate may have wrong.
- Press Copy counts to paste the totals into a document or a poem draft.
Formula
Reading ease = 206.835 - 1.015 x (words / sentences) - 84.6 x (syllables / words)
Grade level = 0.39 x (words / sentences) + 11.8 x (syllables / words) - 15.59
These are the Flesch Reading Ease and Flesch-Kincaid grade level formulas. Higher reading ease means easier text. The grade level estimates a US school grade.
A six word sentence
The cat sat on the mat. has 6 words, 6 syllables and 1 sentence. Reading ease = 206.835 - 1.015 x 6 - 84.6 x 1 = 116.1, which is far above the usual 0 to 100 range because every word is a single syllable.
Grade level = 0.39 x 6 + 11.8 x 1 - 15.59 = -1.45, which the tool shows as -1.5. A negative grade simply means the text is simpler than the formula was designed to measure. Beautiful, created and syllable count as 3 syllables each.
How the syllable estimate works
English spelling does not map neatly onto sound, so no short program can count syllables perfectly. This counter counts groups of vowel letters (a, e, i, o, u and y) and then adjusts. It drops a silent final e in words like make and time, treats endings such as -ed and -es as silent unless they are pronounced (wanted, boxes), keeps the syllable in -le words such as table, and adds a syllable for vowel pairs that usually split, as in actual, media and violin. A short list of common exceptions covers words the rules get wrong, including area, idea, quiet and people.
These rules are right for most everyday words, but they are an estimate. Names, loanwords, abbreviations and words with regional pronunciations can be off by one. The table lists every word so you can see and correct the few that matter, for instance when you are fitting a haiku to five, seven and five.
Reading the scores
A common way to read the Flesch reading ease score is: 90 to 100 very easy, 80 to 89 easy, 70 to 79 fairly easy, 60 to 69 plain English, 50 to 59 fairly difficult, 30 to 49 difficult, and below 30 very difficult. Scores depend heavily on sentence length, so long sentences push the number down even when the words are simple.
Treat the scores as a rough guide. They work best on passages of 100 words or more, and they only measure surface features. They do not judge clarity, accuracy or tone. Sentences are counted from periods, exclamation marks and question marks followed by a space, so abbreviations such as Dr. can add a sentence.
Good uses
Poetry and songwriting (haiku, limericks, meter), checking text for early readers, language practice, and quick readability checks on web copy. Your text is analyzed in this tab and is never uploaded or stored.
Assumptions and limits
- Syllable counts are estimated from spelling rules and a short exceptions list, not looked up in a dictionary.
- Only English letters are counted. Numbers and symbols are ignored, and accented letters are skipped.
- Sentences end at . ! or ? followed by a space or the end of the text.
- Reading ease and grade level use the standard Flesch and Flesch-Kincaid formulas, and are shown only when there is at least one word.
- Input is limited to 200,000 characters and the word table shows the first 300 words.
Frequently asked questions
How accurate is this syllable counter?
It is right for most common English words, but it is an estimate built from spelling rules. Proper names, foreign words and words with disputed pronunciations may be off by one, so the table lets you check each word.
How do I count syllables in a haiku?
Put each line in the box on its own and read the syllables total for each. Aim for 5, 7 and 5, and check any odd word in the table. Words like fire or hour can be one syllable or two depending on accent.
What do the reading ease and grade level mean?
Reading ease runs from about 0 for very hard text to 100 for very easy text. The grade level estimates the US school grade needed to read the passage. Both come from sentence length and syllables per word.
Why can the grade level be negative?
The formula subtracts a constant, so very short sentences made of one-syllable words produce a value below zero. It just means the text is simpler than the scale was built for.
Does the counter handle numbers and abbreviations?
Numbers are ignored because they have no spelling to analyze, and abbreviations are counted as words using the same rules. Pair it with the word counter for characters, words and reading time.