Mushroom Growing Calculators
Free tools to take the guesswork out of mushroom cultivation. Every calculator updates instantly as you adjust the inputs — no buttons to click.
CVG Calculator
Coco coir, vermiculite, and gypsum recipe scaled to any container. Accounts for ingredient moisture.
Bulk Substrate
Hardwood pellets, straw, or sawdust with supplements. Set your bag weight and supplementation rate.
Spawn Ratio Calculator
Calculate exactly how much spawn you need for your substrate weight. See contamination risk ratings by spawn rate.
Liquid Culture Recipe
Mix the perfect liquid culture every time. Supports honey, LME, Karo, and brown rice syrup with density-adjusted measurements.
Biological Efficiency
Measure your grow performance against species benchmarks. Track yield per pound of substrate and per 5lb bag.
Grow Room Planner
Calculate production capacity for any room size. See monthly yield, revenue projections, and blocks per tier.
Pressure Cooker Timing
Sterilization times for every substrate type with altitude adjustment. See how many units fit in your PC.
Fresh-to-Dry Converter
Convert between fresh and dried mushroom weights by species. Includes dehydration time estimates.