Trying to lose that last 10 lbs

Hi, my name is Paul from Puyallup.  I'm 6-4 and 205 lbs.  I'm trying to get down to 195.  I run three times a week and lift weights 1 or 2 times on the off days.  I eat well but think I may not be getting enough cals a day.  I found out here I should be at about 2500, and I'm more like 1800-2000 a day on average.  Also wondering how to tell how much muscle weight I have gained.  I have lost a lot of inches but the scale hasn't dropped a ton as I would have thought.