Readability Calculator

Check the readability score of your text

With our free readability checker you can instantly calculate how easily your intended audience will be able to read your written content.

What readability tests does this tool score your text on?

This automatically gives your text the score for the following 8 readability metrics:

Flesch-Kincaid Reading Ease

Higher scores in this test indicate that the written material is easier to read. This readability score is widely used across many commercial and Governmental sectors.

Flesch-Kincaid Grade Level

Used throughout the field of education and beyond, this test scores your text as a U.S. grade level. This makes it much easier for teachers, librarians, parents and others to correctly assess the overall readability level of their reading materials. It also can be referred to as the number of years of education that are required to properly understand the text.

Gunning Fog Index

This score estimates the number of years of education required by the reader to fully understand the written content. For example, a fog index of 12 would indicate a reading level of a U.S. high school senior, at 18 years old.

Coleman-Liau Index

This test aims to gauge the U.S. grade level required to understand a passage of text.

SMOG Index Score

This index scores according to the humber of years of education needed by the reader to understand the text. SMOG is actually a fun acronym for Simple Measure Of Gobbledygook.

Automated Readability Index

Like several other readability scoring metrics, the ARI gives an estimation of the U.S. grade level required of the reader.

New Dale Chall Readability Formula

Using large lists of words that are understood by fourth grade students in the U.S, this metric provides the following scoring.

Dale Chall Score	Reading Age
4.9 or lower	4th grade student or lower
5.0-5.9	5th or 6th grade student
6.0-6.9	7th or 8th grade student
7.0-7.9	9th or 10th grade student
8.0-8.9	11th or 12th grade student
9.0-9.9	13th to 15th grade student (College)

Spache Readability Score

This formula compares a passage of text against a defined list of everyday words. The percentage of words not on that list, and the length of the sentences help determine the approximate reading age.