This calculator works out milligrams of THC per serve from your flower weight, THC percentage and number of servings. It also works in reverse — enter your target dose and it tells you how much flower or oil you need.
Edibles take 30 minutes to 2 hours to take effect and can last 4–8 hours. Beginners should start at 2.5 mg or less and wait at least 2 hours before considering more. Never drive after consuming THC.
Every calculated figure is an upper bound. Real infusions recover only part of the available THC, so a batch is usually weaker than the calculator suggests — never stronger.
For recipes and guides, visit Cannabis Cuisine. In Australia, contact the Poisons Information Centre on 13 11 26, or call 000 in an emergency.