Its called an eighth because it is an eighth of an ounce. So that adds up to roughly 3.5 grams. An eighth can range anywhere from 30 USD to around 60 or 70 USD it all depends on where you are located.

the cost of an 8th of weed is tough to calculate given that it will lead to more weed, you dropping out of school and therefore decreasing your future earning potential, giving up any real shot at a healthy relationship, and probably much harder drugs, which are inherently more expensive. So how much does an 8th of weed cost? How about YOUR ENTIRE LIFE. Find Jesus.

It's called an 8th in England because you folks don't use the proper ways of measuring things-oh you used to, but then you started becoming like the rest of Europe-after you stick us with your ways of measurements! and your hard to learn language!

man I'm high I can't do math right now

I'm not a smoker. I'm just wondering how much money people spend on an 8th of weed in the UK. Why is it called an 8th?

And what do you call ￡40, ￡50, ￡60 pounds worth of weed?