Mycelocity
Free Mushroom Growing Calculators
comprehensive calculator hub for mushroom growers. We provide accurate tools to calculate substrate ratios, estimate yields, optimize environmental conditions, reduce contamination, and plan profitable micro-farms. Built for beginners and serious growers alike.
Mycelocity is a free set of mushroom growing business tools — calculators and guides — for people who already run a mushroom growing business, or want to start one. Each calculator works on its own, so you can do something small like estimate fresh yield from biological efficiency. Or use them together as a single mushroom business calculator: yield drives your revenue, your costs decide the margin, and that margin is what gives you break-even, payback, and ROI.
Every tool shares one grow profile, so you change a number once and watch the entire plan recompute. Pick a single calculator below, see the full rundown of mushroom growing business tools, or open the connected hub to model your farm end to end.
All 10 mushroom calculators
From biology to finance — each has its own page, and all of them connect on the hub.
Biology
Yield, contamination and substrate fundamentals — the root of the model. Includes a yield calculator and a substrate weight calculator.
- Biological Efficiency & Yield Convert biological efficiency and dry substrate weight into yield per block.
- Contamination Loss Estimate harvestable blocks and effective yield after contamination.
- Substrate Moisture & Hydration Measure substrate moisture content or compute water to add to hit a target.
Operations
Per-block cost and the physical capacity to produce at scale — a cost calculator and a block calculator in one.
Economics
Turn yield and cost into revenue, margin and break-even — profit calculator, margin calculator and revenue calculator territory.
Finance
Capital required to start and how fast it pays back — the business calculator and roi calculator section.
Frequently asked questions
- How does the mushroom busines calculator work?
- Mycelocity uses biological efficiency (BE%) — fresh yield ÷ dry substrate weight — as the root input, which feeds a chain of derived calculations: yield drives revenue per block, revenue minus COGS determines contribution margin, and margin scaled by monthly block volume minus fixed costs produces net profit, break-even, and ROI automatically. Every value is a pure function of your inputs, so changing a single variable like contamination rate or species propagates instantly through the entire financial model with no manual recalculation. The practical benefit is that you're manipulating a live mathematical model of your operation rather than running isolated calculators: a species switch from oyster to lion's mane simultaneously updates yield, price, margin, break-even, and payback period in one step.
- Why are you doing this
- As someone with ADHD, mushroom growing was a nice hobby for me. However, it took a lot of convincing for my mom because it was hard to calculate the costs, profit, and space. I made this tool out of my own frustrations and difficulties such as having to enter in values over and over again, and being a beginner when it came to what and how to do the math.
- Does my work save
- I'm working on either making an account database or using cookies to save. User feedback would be much appreciated.
- Are the calculators free?
- Yes. Every calculator on Mycelocity is free to use, with no sign-up required.