I do wonder to what degree I can rely on the kcal calculations done by the personal profile page. When I say 1h.30 min that is including the rest periods between each set many which are used for adjustments of seats and such for the next exercise and some stretching. Do I have to subtract a certain number of minutes or what?

Here is today's example.

Strength
Total Strength Duration: 1:30:00 hh:mm:ss
Total Strength Calories: 653 kcal

Duration: 1:30:00 hh:mm:ss
Calories: 653 kcal

Chest Press Machine
Set Weight Reps
1 12.00 12
2 12.00 12

Triceps Pushdown
Set Weight Reps
1 12.00 12

Triceps Extension Machine
Set Weight Reps
1 12.00 12

Leg Extension
Set Weight Reps Duration (mm:ss) Rest (mm:ss)
1 26.00 12

Leg Curl
Set Weight Reps
1 33.00 12

Leg Press
Set Weight Reps
1 135.00 12
2 145.00 12
3 155.00 12
4 155.00 12 0:00

Front Lat. Pull-Down
Set Weight Reps
1 19.00 12
2 19.00 12