The simple math
Sum of runtimes ÷ speed ÷ daily minutes
A trilogy of 10, 12, and 14 hours totals 36 hours. At 1.5× that's 24 hours of actual listening. At 45 minutes a day, that's 32 days — a real finish date, not just a page count.
Add or remove books as your list changes, and the total, listening time, and finish date update immediately.
