This simple Contentful App offers the capability to calculate and store a reading time value along with an entry, making it especially useful for blog post articles.
The calculation is derived from a single entry field, whether it’s Rich Text or Long Text. It takes into consideration the number of words, assets, and embedded entries, providing an efficient way to estimate reading time for your content.
Download and installation instructions on github https://github.com/pauloamgomes/contentful-readingtime-field-app