From Stjepan Nikolic@21:1/5 to All on Thu Jul 23 20:55:25 2020
Well, my C172A definitely can take 4 people (2 adults 155kg + 2 children 90kg), plus full 140 lit tanks and there is 50kg spare to carry.
Unfortunately this is not possible in C172N with 180 lit tanks unless departing with less fuel.