well depends how old you are, as i've always been size 12, but now i'm in between as sizes in real life and i haven't got bigger!! tried on dresses at weekend 10/8, WTF i'm 12
Jods seem to come up different to jeans. I bought a pair of 32in jods thinking that's a 14 (my jean size which size 32in waist) but they hang off me like a circus tent. Ended up buying 28in jods, which flatters my ego, but I guess it's all that stretchy stuff in material