How much can a jellyfish weigh?

Jellyfish weights vary significantly among different species, with some species weighing just a few grams (like the Irukandji jellyfish), while others, such as the frilly sea nettle, can weigh up to 440 pounds (200 kilograms). The largest known jellyfish is the lion's mane, which has a bell that can reach a diameter of 8 feet (2.4 meters) and tentacles that can reach up to 120 feet (36.5 meters) in length. These giant specimens can weigh up to 2,200 pounds (1,000 kilograms).