01 / Tools
Cannabis
calculators.
Free, no-signup calculators for South African cannabis and CBD users — dosing, potency, and how long THC stays in your system. Educational only, 18+.
5
Calculators
Free
No signup
SA
Local context
02 / All tools
Pick a calculator
- Drug test
Weed detection calculator
How long does weed stay in your system? Estimate a THC detection window by usage, weight and test type.
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- Dosing
Edibles dosage calculator
A start-low THC edible dose by body weight, experience and desired intensity — with onset and duration.
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- Dosing
CBD dosage calculator
A personalised starting CBD dose from your body weight, experience and goal, in mg and dropper drops.
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- Pets
Pet CBD dose calculator
Suggested starting CBD dose for dogs and cats by weight, use case and bottle strength.
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- Potency
THC calculator
Convert flower %THC and grams to total mg THC and mg per joint, or convert mg ↔ % by mass.
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Lab-tested cannabis, CBD & accessories
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