Readability Grade Level Checker

Paste text to see its approximate reading grade level using the Flesch-Kincaid formula.

0Grade level
0Reading ease (0-100)
0Words
0Sentences

Writing that's technically correct can still be hard to follow if sentences run long and words are consistently complex. This tool estimates the Flesch-Kincaid grade level of your text — roughly, the US school grade a reader would need to comfortably understand it.

It also calculates the Flesch Reading Ease score on a 0–100 scale, where higher scores indicate easier-to-read text, both derived from average sentence length and average syllables per word.

This is widely used in journalism, technical writing, and plain-language guidelines to check that content matches its intended audience — a general public announcement, for instance, is often targeted around an 8th-grade reading level.

Because everything runs locally in your browser, results appear instantly and nothing you type or upload is ever sent to a server.

Bookmark this page if you expect to use this tool regularly — it loads fast and behaves the same way every time, with no account needed.

This kind of task shows up constantly in everyday writing, coding, design, and admin work, which is exactly why a dedicated, focused tool saves so much back-and-forth.

Frequently asked questions

What grade level should my writing target?

It depends on your audience — general public content often aims for around 8th-grade level, while academic or technical writing naturally runs higher.

How is the syllable count estimated?

The tool uses a standard vowel-group counting heuristic to estimate syllables per word, which is accurate for the vast majority of common English words.