15 Free Cannabis Calculators
Accurate tools for edible dosing, growing, and more. Privacy-first, completely free, and easy to use.
Edible Dosage Calculator
Calculate THC and CBD mg per serving for homemade edibles and infusions
NewCannabutter Calculator
Calculate THC/CBD potency per tablespoon for butter and oil infusions
NewTHC:CBD Ratio Calculator
Find optimal THC to CBD ratios for pain, anxiety, sleep, and more
NewConcentrate Dosing Calculator
Calculate mg per dab for wax, shatter, live resin, and concentrates
Tolerance Break Calculator
Determine optimal tolerance break duration based on your usage frequency
Decarboxylation Calculator
Calculate optimal time and temperature for activating THC and CBD
NewCannabis Tax Calculator
Calculate dispensary taxes by state including excise, sales, and local taxes
Grow Light Calculator
Calculate required wattage and PPFD coverage for your grow space
NewDLI Calculator
Calculate Daily Light Integral from PPFD for optimal light delivery
VPD Calculator
Calculate Vapor Pressure Deficit for optimal growing conditions
Nutrient PPM Calculator
Calculate nutrient concentrations and EC for hydroponic systems
NewYield Estimator
Predict harvest weight based on grow method, space, and experience
Cost Per Gram Calculator
Track growing expenses and calculate your cost per gram and ROI
NewSoil Volume Calculator
Calculate soil and medium volume needed for any container or raised bed
NewDry & Cure Timer
Get optimal drying and curing timelines for your cannabis harvest
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Privacy First
All calculations happen in your browser. No data is stored or shared. Ever.
Fast & Simple
Instant calculations with no server delays. Get results as you type.
Completely Free
No subscriptions, no hidden fees, no accounts required. Just free tools.