ReadingTIme 0.9.0 is the first release of a Kotlin/Java library that can be used to estimate the reading time of blog posts, articles, etc.

It is an implementation of the Medium's Read Time calculation and is used extensively on this blog.

val rt = ReadingTime(htmlText)
println(rt.calcEstimatedReadTime()) // eg: 2 min read

As usual the source code, documentation and binaries are on GitHub.