XXL recommends 2-3-2-5 jeans to wear 30-33 weight 120-140kg
XXXL recommends wearing 2-foot 5-2-foot 7 jeans with a weight of 34-37 weighing 145-165kg.
The above is for most reference. Each person has different height, weight and body shape. He likes to slim fit and size. He likes to loosen up and recommends a large size. For reference