How much THC is in that canna-butter you’re making?

by Alex Robles

If you’ve ever wanted to make canna-butter for edibles but you were unsure about how the dosage would work out.  This formula should help you figure out how much THC is going to wind up in those cookies.  I didn’t come up with this formula, but this is the one I use.


1 gram of cannabis = 1000 milligrams

If the cannabis has 25% THC

25% of 1000 milligrams is 250 milligrams

I.e.  3.6g (⅛ oz) of cannabis = 3600 milligrams

25% THC of 3600 =  900 mg THC

Extracted into 1 cup (8 oz) of butter, the butter will now have 900 mg of THC.


When you use 1/2 cup of that butter to make 36 cookies, then 

that batch will have 450 milligrams. Divide 450 mg by the number of cookies.  For 36 cookies there will be about 12.5 milligrams of THC in each cookie.



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