[Stephen]

According to the deductions in this article Solo takes place 9 years before A New Hope. Making Han about 20 in this.

https://www.elitedaily.com/p/when-do...d-know-9178320

According to Smuggler’s Run - A Han Solo & Chewbacca Adventure, which is a Star Wars: The Force Awakens prequel novel, and therefore part of the new canon, Chewie was at the Battle of Kashyyyk in Star Wars: Revenge of the Sith. And moreover, the book states he's 180 years old. That battle takes place in the year 19 BBY*, not long before the birth of the twins, means Chewie was 180 years old when they were born, when Han was all of 10.