THC potency calculator

A "20% THC" label is a percentage by weight, 1 gram of it holds 200 mg of THC. Enter a product's weight and potency to see the total in milligrams.

1 Weight (grams)
2 THC %
Total THC in this product

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-mg per gram
-mg per 0.1 g

A rough yardstick, not a dose. How much actually reaches you depends on the method, see what THC % really means.

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