ok i dont know how the conversions go but when i do buy my dealer gives me a Z and a quarter for 100$ i did an online unit converter and it came out to be
1.25oz (avoirdupois) = 35.436904 Grams
the shit isn't bad either, i've only smoked a few times on other shit that i liked more. And when i smoke with other people they all seems to like it a lot although, ive never had any really good isolated strains so im not the best judge but im happy with the price and product, so i always buy from the same guy.

[edit] you can check the conversions here
[edit] http://www.digitaldutch.com/unitconverter/