Free calculators and strain-matching tools — no signup, no email gate. Built for growers who want answers fast.
5-question quiz that scores all 4,100+ strains against your goals (effects, difficulty, climate) and returns the top matches with compatibility scores.
Estimate harvest weight from grow space, light wattage, training method, and strain. Indoor and outdoor formulas with breakpoints by experience level.
Mix exact nutrient amounts per gallon by growth stage. Supports common 3-part lines and adjusts for veg / early flower / mid flower / late flower.
Pick up to 4 strains and compare THC, CBD, yield, flowering time, difficulty, effects, and price side-by-side in one table.
Every tool uses the same dataset that powers the marketplace — 4,100+ strains across 33 verified seed banks. Strain Finder pulls from real grower reviews and breeder data, the Yield Calculator uses published averages per strain, and Compare Strains links each comparison row directly to the marketplace listing.