Sizes of Guinea Pigs?

[guineapigz]

When I got my piggies they were young but i didn't have an exact age.
What I want to know is how long on average is a fully grown pig and is there any charts that show age to length.

Thanks

 

[CandyFloss]

I dont know...... but its an interesting question and I'd like to know the answer too..... it may well vary with animal to animal but I guess there must be a norm?

x

 

[lauralucy]

most of mine look the same length except one, wouldn't like to try and measure them though.