The length of the average British House Spider (non-poisonous) is around 10-50mm (1-5cm) but larger and smaller specimens have been found.
The Theridon Grallator, or Hawaiian Happyface Spider, averages approximately 5mm in length. It weighs on average less than 1 gram.
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The White Crab Spider can grow to a size of 10mm in length.
The smallest length known today is 2.3cm
14.6 feet
1/2 in. long
An average couch is about average length
The smallest spiders in the world are the Samoan Moss spider which are known to grow at a length of 0.0017 inchesAnapistula Caecula, the smallest spider
a average spider has about 2,230,00- (sience studies show)
The average size of a spider is about 4 centimeters depending on the species
Only some species are smaller than average monkeys. Many are significantly larger, especially in the length of their long arms, legs, and tails.