Although most Pokemon weigh in at less than 200 pounds, there are some exceptions to be sure.
What is the heaviest Pokemon?
Actually, Celesteela and Cosmoem share the weight title at 2204.4 pounds (999.9 kg) each.
Primal Groudon is just a hair behind at 2204.0 pounds (999.7 kg).
Which are the lightest?
Gastly, Kartana, Flabebe, Haunter and Cosmog all weigh 0.2 pounds (0.1 kg).
~ Fun Fact ~
While many people think Charizard was the first Pokemon, the very first Pokemon design was Rhydon.