What readability algorithms do you use?

Readable is the most comprehensive readability tool.

Readable currently uses:

Grade Levels

Flesch-Kincaid
Gunning Fog
Coleman Liau
SMOG
Automated Readability Index
FORCAST
Powers Sumner Kearl
Rix

Graphs

Raygor Readability Graph
Fry Readability Graph

Scores

Flesch Reading Ease
CEFR
IELTS
Spache
Dale-Chall
Lix
Lensear Write

New scores are regularly added.

Updated on: 11/11/2020