I guess it depends on your tolerance. If it was actually the Chronic it'd probably last me a week. If I vaped anyway. If I smoked bowls probably less.

Well, now that I think about it it'd probably be more like 4 days. Because 1.5 grams isn't all that much.

And sorry I'm extremely high lol it'd probably be like 3 days. Shit I don't know lol. I never really weigh my weed so I'm not sure how much that much would last me.