how big can average bunnies grow?

Well, it depends on the breed of rabbit. Here's a list of rabbit breeds and how big they get as an adult.

Small - 2 to 6 lbs (0.9-2.7 kg)

American Fuzzy Lop

Britannia Petite

Dutch

Dwarf Ho tot

Florida White

Havana

Himalayan

Holland Lop

Jersey Willy

Mini Lop

Mini Rex

Nether land Dwarf

Polish

Lionhead (although not an official breed yet)

Medium - 6 to 9 lbs (2.7-4.1 kg)

American Sable

Belgian Hare

English angora

English Spot

French angora

Harlequin

Lilac

Rex

Rhinelander

Satin Angora

Silver Marten

Standard Chinchilla

Large - 9 to 11 lbs (4.1-5 kg)

American

American Chinchilla

Beveren

Californian

Champagne d'Argent

Cinnamon

Creme d'Argent

English Lop

Giant Angora

Hotot

New Zealand

Palomino

Satin

Silver Fox

Giant - 11 lbs (5 kg) and over

Checkered Giant

Flemish Giant (Patagonian)

French Lop

Giant Chinchilla

Silver

Tan

For a mixed breed, however, I can't tell you, because I don't know what breeds your bunny is mixed in with! I hope this helps!

How Big Do Bunnies Grow

Rabbits can range in size anywhere from a pound or two up to around 20 pounds, depending on breed. There are large variations in size.

It all depends on what breed your rabbit is.

there isn't an answer to that because it depends on what breed it is

ABOUT AS BIG AS A YORKIE ...4-6 LBS...HOPE THIS HELPED :)

ABOUT 5LB