This is a standard table; it shows approximately 850 hit points, 3.3 for a goblin, 6.2 for a skeleton, 9.1 for an orc, and so on. You can find it on a friendly resource. I used it during a tournament, and everything seemed to match up.
In my opinion, the values for grand elves and "pokemon veterinarians" don't match. Maybe there are others. All the rest seem to be correct.