ClickHelp User Manual

New Dale-Chall Score

The New Dale-Chall formula is a readability metric used to indicate how difficult a text is to read based on a predefined set of "common" words and the ratio of "difficult" words and words per sentence. Values correspond to the US grade level a reader requires to understand a text and should be interpreted as follows:

Value School level Student age range Notes
4.9 or lower Pre-kindergarten - 4th grade 3-10 Very easy to read.
5.0 - 5.9 4th grade - 6th grade 10-12 Easy to read. Conversational English for consumers.
6.0 - 6.9 6th grade - 9th grade 12-14 Fairly easy to read.
7.0 - 7.9 9th grade - 10th grade 14-16 Standard, plain English. Easily understood by 14- to 16-year-old students
8.0 - 8.9 10th grade - 12th grade 16-18 Fairly difficult to read.
9.0 - 9.9 12th grade - college graduate 18-22 Difficult to read.
10 and above University graduates 22 and above Very difficult to read. Best understood by university graduates.
Since the formula relies on a predefined set of words, the metric is only available for English and returns 0 for all other languages.

Check out the other readeability metrics: