🧪 Mushroom Growing Calculators
Free precision tools for growers
Wet-to-Dry Weight
Fresh to dried mushroom conversion
Bulk Substrate
Hydration & recipe builder
Farm Profit
Revenue & margin estimator
Grain Preparation
Grain hydration for spawn bags
Agar Recipe
MEA, PDA & custom plate formulas
Liquid Culture
Honey, dextrose & custom LC recipes
These free tools are designed for Canadian mushroom growers at every level. Whether you're prepping your first fruiting block or planning a commercial farm, our calculators take the guesswork out of mushroom cultivation. All calculations are based on proven formulas and real growing data from our facility in Brantford, Ontario.
Ready to Start Growing?
Our calculators pair perfectly with Nature Lion grow kits, grain spawn, and substrate supplies. Everything you need to grow gourmet mushrooms in Canada.
Free tool
Build Your Grow
Tell it where you're starting and it sizes the whole grow: how much spawn, how much substrate, how many containers, the expected harvest and what it works out to per pound.
- I have grain spawnSize the substrate and containers around it
- I'm starting from liquid cultureWork out the grain, then the fruiting plan
- I'm starting from agarPlates to grain to substrate, in order
Live store pricing. Free shipping on orders over $50. Or start from a pre-built bundle.