calories and weight lifting

You can enter strength training under cardio for a calorie burn estimate. I don't know how accurate it is, but since exercise calorie estimates are always a little iffy the best thing to do is track your progress for awhile and see whether it seems accurate for you. Then adjust as needed.

http://www.livestrong.com/article/295718-does-lifting-weights-burn-more-calories-than-cardio/

Calorie burns in general are very hard to gauge, and burns from lifting are probably the hardest. IMO, pick a number (something like 5 cals per minute) and use that method for a month or so. Then compare your expected results with your actual results and tweak at necessary.