Mycelocity
Mushroom Business & Farm Calculators
A connected mushroom business calculator suite — all 10 tools share one grow profile, so you change a value in one and every calculator below recomputes live, no navigating away required. Each also has its own page if you just need a single tool.
This is the calculator hub: a free business calculator and free calculator suite in one page, covering yield, cost, profit, margin, revenue, break-even, startup cost and ROI.
How it connects
One grow profile flows down four layers. Click any tool to jump to it.
Grow profile
Start here. Pick a species to seed biological efficiency, price, spawn ratio and cycle days — the four values that flow into every layer below. Each is editable in exactly one place; everywhere downstream shows it as a “fed in ↑” chip.
Species preset · the root of the model
Picking a species sets the four values below for every calculator on the page — override any of them here and the whole chain recomputes.
Biology
Yield, contamination and substrate fundamentals — the root of the model. Includes a yield calculator and a substrate weight calculator.
Biological Efficiency & Yield
Open full page ↗Biological efficiency (BE) is the ratio of fresh mushroom yield to the dry weight of the substrate, expressed as a percentage. This calculator converts your BE and dry substrate weight per block into the fresh yield you can expect, in grams and pounds, and splits it across each flush. As a mushroom yield calculator it doubles as a substrate weight calculator, since BE is only meaningful against an accurate dry weight. It is the root of the Mycelocity model — yield feeds revenue, margin, break-even and capacity downstream.
Inputs
- Biological efficiency85%
Yield per block
Per-flush yield
Contamination Loss
Open full page ↗Contamination is the single biggest source of lost yield for most growers. This calculator takes the number of blocks you started and your contamination rate and returns how many blocks remain harvestable, how many are wasted, and the effective yield once losses are applied. Use it as a quick mushroom rate calculator — and an estimate calculator for how much a bad batch actually costs you — alongside the per-block yield from the Biological Efficiency calculator.
Inputs
Shares yield per block from the Biological Efficiency calculator.
After contamination
Substrate Moisture & Hydration
Open full page ↗Substrate moisture content drives colonization speed and contamination risk. This calculator works two ways: measure the current moisture percentage from wet and dry weights, or specify a target moisture and get the exact amount of water to add. As a wet/dry weight calculator it also doubles as a moisture rate calculator for dialing in field capacity, which for most bulk substrates sits around 60–70%.
Inputs
Current moisture
Operations
Per-block cost and the physical capacity to produce at scale — a cost calculator and a block calculator in one.
COGS per Block
Open full page ↗Cost of goods sold (COGS) per block is the all-in variable cost to produce one fruiting block: substrate, spawn, packaging, and the energy and labor of sterilization spread across a batch. This calculator builds COGS up from each component so you can see what is actually driving your cost — effectively a per-block cost calculator and price estimate calculator in one, itemizing the materials bill before you set a sale price — and it feeds directly into margin and profit.
Cost components
Total
Capacity & Chambers Needed
Open full page ↗Capacity planning answers a simple question: how many fruiting chambers do you need to hit your production target? This calculator computes blocks per chamber from shelf area and block footprint, cycles per year from your cycle length, and the number of chambers required for your target annual output — a block calculator and production-rate calculator for sizing a grow before you commit to it.
Per-chamber throughput
To hit your target
Economics
Turn yield and cost into revenue, margin and break-even — profit calculator, margin calculator and revenue calculator territory.
Profit per Block
Open full page ↗Profit per block ties the whole model together. It takes your species, biological efficiency and substrate weight to derive yield, multiplies by price for revenue, subtracts COGS for margin, then scales by your monthly volume against fixed costs for monthly net profit and break-even. As a business calculator for profit it doubles as a margin calculator and an income calculator — margin cost (COGS) is the number that decides whether monthly income is positive at all. Change any single input and every downstream result recomputes instantly — this is the connected hub in action.
Monthly volume & overhead
- Biological efficiency85%
- Price$8.00/lb
- COGS / block$4.60
- Contamination8%
- Harvest survival92%
Tier 1 · Biology
Tier 2 · Per block economics
Tier 3 · Monthly outcome
Break-even
Open full page ↗Your break-even point is the production volume at which contribution margin exactly covers fixed costs — below it you lose money, above it you profit. This calculator divides monthly fixed costs by the contribution margin per block to give the blocks, and then pounds, you must sell each month — the rate calculator every new mushroom business calculator should start with before scaling up. Margin is shared live from Profit per Block.
- Contribution margin / block$10.39
- Fixed costs / month$3,000.00
- Contamination8%
- Harvest survival92%
Break-even point (per month)
Revenue per Square Foot
Open full page ↗Revenue per square foot is the headline KPI of vertical farming: it tells you how hard your fruiting space is working. This calculator multiplies blocks per chamber, cycles per year, yield per block and price into annual revenue, then divides by the fruiting footprint — a revenue calculator and price calculator combined, since both feed straight into the per-square-foot number. It reuses capacity and yield from the rest of the hub.
Inputs
- Price$8.00/lb
- Blocks / chamber960
- Cycles / year13.04
- Yield / block1.87 lb
- Contamination8%
- Harvest survival92%
Annual output
The KPI
Finance
Capital required to start and how fast it pays back — the business calculator and roi calculator section.
Startup Cost
Open full page ↗How much capital does it take to start a mushroom farm? This calculator itemizes the major startup line items — equipment, initial substrate and spawn inventory, facility deposit, licensing and build-out — into a single total with a category breakdown. It works as a free business calculator and startup cost estimate calculator before you commit any capital. That total feeds the payback and ROI calculator.
Startup line items
Breakdown
Total
Payback & ROI
Open full page ↗Payback and ROI translate operating profit into an investment return. This calculator takes your total startup capital and monthly net profit to compute how many months it takes to recover your investment, your annual return on investment, and your cash-on-cash return. It is the business ROI calculator and income calculator in the suite — one of the roi tools growers use to decide whether the income justifies the capital. Both inputs flow in automatically from Startup Cost and Profit per Block.
Both inputs are chained in from the hub
- Total startup capital$27,300.00
- Monthly net profit$676.85