How large do spider crabs get?

Question

How large do spider crabs get?

Answer 1

The largest spider crab there is, is called a Japanese Spider Crab. These are the largest known arthopods in the world, with a leg span of almost 4 meters (13 ft), and a body size of up to 37 cm ( 15 in)! They can weigh up to 20 kg or 44 lb!

If you would like a picture, here is a link: http://www.nhm.ac.uk/tring/galleries/gal...

Answer 2

Well on the Japanese TV show Ultraman he fought one that was 7 stories tall.