Reading Pace Calculator
How it works
"Finish by a deadline" subtracts pages already read from the total to get pages remaining, then divides that by the days left — the steady daily pace that reaches the last page exactly on time. "At my own pace" runs the same division in reverse: pages remaining divided by a pace you choose gives the number of days it will take. Both treat the book's remaining length as the one thing in common between the two questions.
Frequently asked questions
What if I have already read the whole book?
Pages read so far equal to the total is not an error — the pace needed comes back as 0 pages a day, since there is nothing left to read. The tool reports that rather than refusing the input.
Why are "finish by a deadline" and "at my own pace" two separate calculators?
They answer different questions. The first asks "how fast do I need to go to make this date?" and solves for a pace. The second asks "how long will my current pace take?" and solves for a number of days. Folding them into one form would mean one of the two always has to be worked out by hand first.
Does this account for slower or faster days?
No — both sides assume a constant pace, the same number of pages every day. Real reading speeds up on a gripping chapter and stalls on a busy week, so treat the result as a steady-state estimate to aim for, not a guaranteed finish line.