I work in Dietary at my local hospital. one carb exchange (I.e. one serving of a carbohydrate) equals 15 (unsure of the measurement...the nurses look more closely at carb intake than we do..ts either mg or g).
Sorry I dont but maybe the diet and weight loss forum may have ideas ..good luck
I found a intake formula on how much carbo-hydrates are you suppose to eat daily depending on your daily activity in a book I'm reading.
CH (carbo-hydrate), BM(Body mass / Weight)
Regularly active: 4.5- 5g CH/kg BM/day
Sports of strength: 5-6g CH/kg BM/day
Endurance sports (more than 90min day): 8-10g CH/kg BM/day