I just revisited an old post where I dissected BMR, foods I need to eat etc. and then took a look at what I feel I can realistically contain my eating habits to and what I'm doing to burn calories each week.
I log every single workout in a little tiny spiralbound notebook. I also use the Technogym USB key to log my workouts while at the gym and receive feedback on how many calories I burned. Based on what I recorded for the last 14 gym workouts (not including the mornings I did Turbo Jam or the volleyball games I play recreationally once a week), my average workout burns 460 calories combining weight training and treadmill cardio.
Since it takes burning off 3500 calories to take off a pound, by my average workout, it would take me 4.37 days to burn off 1 pound through exercise alone. However, since my body would be maintained if I ate 2147 cals a day, if I want to eat 1350 cals a day, I save 797 cals/day just through diet.
Daily (and hopefully this makes sense because math was never my forte):
Diet (797) + Average Work (460) = 1257 saved per day.
3500 calories / 1257 calories saved = 2.78 days to lose 1 lb.
20lbs x 2.78 days = 56 days to lose this weight
New goal date: April 28th (because I like milestone dates)
