Economics

Profit per Block Calculator

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.

Formula revenue = yield_lb × price · margin = revenue − COGS · monthlyNet = margin × blocks − fixed · breakeven = ceil(fixed / margin)

Monthly volume & overhead

Blocks per month

Fixed costs per month

Fed in from Grow profile ↑

Biological efficiency85%
Price$8.00/lb

Fed in from COGS per block ↑

COGS / block$4.60

Fed in from Contamination loss ↑

Contamination8%
Harvest survival92%

Tier 1 · Biology

Yield per block

850 g

1.87 lb

Price

$8.00

per pound

Tier 2 · Per block economics

Revenue / block

$14.99

Margin / block

$10.39

per healthy block · after $4.60 COGS

Tier 3 · Monthly outcome

Break-even

327

blocks to start / month

Monthly net profit

$676.85

after fixed costs · 8% contamination

Explore all 10 connected calculators

On the hub, every calculator shares one grow profile — change a value once and yield, cost, profit, break-even and ROI all recompute together.

Learn the concept

Guides that explain the numbers behind this calculator.

Mushroom Growing Business Tools The tools a mushroom growing business actually runs on — from biological efficiency and contamination tracking to cost, profit and ROI — and which free calculators cover each one.
How to Start a Mushroom Farm A practical, numbers-first walkthrough of starting a mushroom farm — choosing a species, the setup you need, what it costs to start, and how to size your space to a production target.
Is Mushroom Farming Profitable? What actually drives mushroom farm profitability — yield, price, cost per block and fixed costs — with worked numbers and calculators to estimate your own margin, break-even and ROI.
The Most Profitable Mushrooms to Grow Comparing oyster, shiitake, lion's mane and king oyster on biological efficiency, price per pound, cycle speed and difficulty — to find the best balance of yield and value for a new farm.
Reading Your Farm's Economics: Margin, Break-even and ROI How yield and cost become margin, break-even and return on investment — the chain that turns a grow into a business, tied to four connected calculators.