Cannabis tools
Eighteen free, no-sign-up tools to help you buy, dose, and use cannabis smart, built on the same source-checked guidance as our guides.
Dosing, potency & amounts
Find a sensible dose, understand how strong a product is, and convert quantities.
Edibles dosage calculator
A sensible starting dose based on your experience and the effect you want.
Open toolCBD dosage calculator
A starting CBD dose based on your weight and goal.
Open toolHomemade edibles calculator
Estimate the THC per serving in a homemade batch so you portion it safely.
Open toolTHC potency calculator
Turn a THC percentage into real milligrams from a weight and %.
Open toolCBD:THC ratio finder
Balanced, CBD-forward, or THC-forward? A ratio to start with.
Open toolUnit converter
Grams, eighths, quarters, ounces, and price per gram.
Open toolChoosing & planning
Work out what to try and how much to buy before you go.
Timing & effects
Know when it kicks in, when it wears off, and how long it lingers.
Legality & limits
The rules and limits that apply where you live.
Is this store legal?
Five questions to tell a licensed retailer from the grey market before you buy.
Open toolProvince rules checker
Age, possession, retail, and growing for your province.
Open toolPossession limit calculator
How edibles, drinks and concentrates count toward the 30 g limit.
Open toolCompare provinces
Moving or travelling? See how two provinces’ rules differ, side by side.
Open toolTrack & manage
Keep tabs on your own use over time.