Need a guesstimation!!

http://www.calorieking.com It has a lot in its database.

I've just ate 20 deep fried chips(fries) not thin fries either lol! I have no idea how many cals and couldnt weigh them... damn I shouldn't have ate them. Anyone got any idea?

from a restaurant? If so try to look up the restaurant online, they may have nutritional info-- if not then check similar restaurants this can give you a guess...
if they were home made then calorie a potato, the oil and guess it out....