How long is the biggest spider in the world?

right now it is the goliath bird eater.you can see a pic if you type in most largest spider on google the click images. the first one is not real.hope this helped :)

the worlds biggest spider is called the goliath bird-eating spider. it lives in south American rainforests and has legs up to 25cm long!

In the ocean you can find spiders with a 20-inch span...see link You can also find the largest spiders in the South American jungles...see link

There is some debate, however, it's widely accepted that the Reticulated Python is the longest - occasionally reaching lengths of up to 35 feet (11 metres)

The biggest whale in the word is the blue whale, and it can grow up to 33m/108 ft long and can weigh up to 100-120 tonnes.