Commodity Profit Calculator
A commodity trade can look profitable on the price spread alone and still lose money once transport, storage, and commissions come out. This calculator settles the question with the full stack: enter the buy price, sell price, quantity, and expenses, and it returns net profit, profit margin, ROI, per-unit profit, and the break-even selling price your lot has to clear.
Works for any commodity: grain, metals, energy, or livestock, physical or futures. Include commissions, transport, storage, and spoilage in expenses, or the profit figure will flatter the trade.
Quick Answer
Key takeaways
- Net profit is only the start. Margin tells you how much of each sales dollar survives; ROI tells you what the trade earned on the cash it tied up.
- The break-even selling price, total cost divided by quantity, is the number to compare against the market before you commit to a lot.
- Expenses decide close trades. On a 5,000-bushel lot, every $500 of forgotten freight or storage cuts profit by 10 cents a bushel.
- Quote discipline matters: grain trades in cents per bushel on the exchange, so convert to dollars before entering prices here.
- Quick Answer
- How to use the commodity profit calculator
- The formulas behind the result
- Worked example: 5,000 bushels of corn
- The expenses that quietly eat the spread
- Physical lots and futures positions are not the same trade
- What competing calculators miss
- Frequently Asked Questions
- Add This Calculator to Your Website
- References
How to use the commodity profit calculator
Enter the quantity in whatever unit the trade is priced in, then the buy and sell price for one unit, then every other cost of the lot as a single expenses figure. Press Calculate Profit and read the verdict line first: it restates the per-unit profit, or, on a losing trade, the exact price you would need to break even. The substituted formulas under the results show each step with your own numbers, so you can audit the answer or copy it into a trade log.
One habit separates careful traders from hopeful ones: run the calculator before the trade, not just after it. Put in the price you are being offered, your full expense stack, and the quantity you can actually deliver. If the break-even price it returns sits above the current market, the trade only works if prices move your way, and that is speculation, not merchandising. A related check for exchange-traded positions is the arbitrage profit calculator, which prices the gap between two markets on the same asset.
The formulas behind the result
Five short formulas produce everything on the results card, and each one answers a different question about the trade.
Margin and ROI look alike and are constantly confused, including by competing tools that print one and label it as the other. Margin divides by revenue: it measures pricing power, the share of the selling price you keep. ROI divides by cost: it measures capital efficiency, what the money committed to the lot earned while it was committed. A trade can post a thin margin and a strong ROI at the same time when it turns over quickly, which is common in grain merchandising. When you later reconcile a season of trades, the adjusted net profit calculator handles the accounting version of the same idea, with adjustments that a per-lot tool leaves out.
Worked example: 5,000 bushels of corn
The calculator is pre-filled with this trade, and every figure below is what it returns, verified against the tool’s own code.
| Line | Working | Result |
|---|---|---|
| Total revenue | $6.45 x 5,000 | $32,250.00 |
| Total cost | ($5.20 x 5,000) + $1,200 | $27,200.00 |
| Net profit | $32,250.00 − $27,200.00 | $5,050.00 |
| Profit margin | $5,050 / $32,250 x 100 | 15.66% |
| ROI | $5,050 / $27,200 x 100 | 18.57% |
| Per-unit profit | $5,050 / 5,000 | $1.01 |
| Break-even selling price | $27,200 / 5,000 | $5.44/bushel |
The $1.25 price spread is not the profit. Expenses take 24 cents a bushel off it ($1,200 spread over 5,000 bushels), leaving $1.01. That gap is where most hand estimates go wrong, because the spread is the number on the quote screen and the expenses arrive later, on separate invoices. Note also what the two percentages say together: the trade keeps 15.66 cents of every sales dollar, and it earned 18.57% on the $27,200 it tied up. Judged on margin alone it looks ordinary; judged on ROI for a short holding period, it is a good trade.
Costs consume about 84% of revenue in this example, which is typical for physical commodity trades: the profit slice is thin relative to the money moving through the deal, and small price or expense errors swing it hard. A 10-cent adverse move in the sell price wipes out $500, a tenth of the profit.
The expenses that quietly eat the spread
The spread is never the whole story. Commissions and brokerage fees, freight and transport, storage and carrying charges, insurance, and financing on the tied-up capital all come out of the same $5,050. Grain adds drying and handling charges plus shrinkage: grain loses weight as it dries and moves, so the bushels you sell are fewer than the bushels you bought. Standard contract sizes from CME Group, summarized in the University of Missouri Extension guide to agricultural commodity futures contract specifications, put a standard corn contract at exactly the 5,000 bushels in the worked example, which is why lot-level expense discipline matters at commercial scale.
Basis deserves its own sentence because it decides real farm-gate prices. Basis is the difference between the local cash price and the futures price; your actual selling price is futures plus basis, as CME Group’s educational material on agricultural futures contract elements explains in its pricing sections. Model the cash price you will actually receive, not the futures price on the screen. Metals traders should add assay and delivery charges; livestock sellers should add feed, yardage, and death loss. Businesses that resell a commodity product at retail face the same stack in miniature, and the gas station profit calculator shows how it plays out for fuel retailing.
Physical lots and futures positions are not the same trade
This calculator prices both, but the expense profile differs and comparing the two without adjusting misleads. A physical lot carries storage, transport, insurance, and spoilage, and its profit is real cash when the buyer pays. A futures position carries commissions, exchange fees, and roll costs if you hold across contract months, and it ties up margin rather than the full purchase price, so the ROI denominator means something different: the same dollar profit on posted margin produces a much larger ROI percentage than on a physical lot’s full cost. Keep the two in separate columns of your records, and never rank a futures trade against a physical trade on ROI alone.
What competing calculators miss
The commodity tools reviewed for this page mostly stop early, and the gaps are consistent.
Miss 1: profit with no quality measures. The most common rival output is total profit and a margin percentage, full stop. A $5,050 profit is excellent on $27,200 of cost and poor on $500,000, and without ROI and per-unit profit the reader cannot tell which trade they are looking at. This calculator returns all five measures on one card.
Miss 2: margin computed on a single unit. Several margin tools divide the per-unit spread by the sell price and never touch quantity or expenses, producing a margin that no real lot ever earned. Here expenses enter total cost before any percentage is computed, so the 15.66% margin in the example is the lot’s actual margin.
Miss 3: no break-even price. The break-even selling price is the figure a trader negotiates against, hedges against, and sets forward contracts against, yet most tools omit it. It is on the results card here, and the verdict line quotes it automatically on a losing trade.
One honest limit: this is a single-lot, pre-tax calculation. It does not model margin calls, partial deliveries, or price moves between buying and selling a hedged position; run it at several sell prices to see the range of outcomes before you commit.
Frequently Asked Questions
Net profit = (sell price − buy price) x quantity − expenses. Margin = net profit / revenue x 100, and ROI = net profit / total cost x 100. In the worked example: (6.45 − 5.20) x 5,000 − 1,200 = $5,050.
Margin divides profit by revenue and measures how much of each sales dollar you keep. ROI divides profit by total cost and measures what the trade earned on the money tied up in it. The same trade above has a 15.66% margin and an 18.57% ROI; they answer different questions.
Divide total cost (purchase cost plus all expenses) by quantity. Here that is $27,200 / 5,000 = $5.44 per bushel. Sell above it to profit, below it to lose, whatever the headline spread suggested.
Yes. Storage, freight, insurance, commissions, drying, and financing on tied-up capital are real costs of holding and moving a physical commodity. Leaving any of them out overstates profit, and on thin-margin lots it can flip a loss into a phantom profit.
Basis is the local cash price minus the futures price. Your real selling price is the futures price plus your basis, so a lot hedged at $6.45 futures with a −20 cent basis actually sells at $6.25 cash. Enter the cash price you will receive as the sell price here.
Shrinkage is quantity lost to drying, handling, or spoilage, so you sell fewer units than you bought. Model it by reducing the quantity to the deliverable amount, or by adding the value of the lost units to expenses. Either way it belongs in the calculation before you judge the trade.
Yes, the arithmetic is the same: contract quantity as units, entry and exit prices, and commissions plus exchange fees as expenses. Just remember the ROI denominator is the full contract value here, not the margin you posted, so futures ROI from this tool is a conservative, unleveraged figure.
There is no universal good margin: it varies by commodity, holding period, and risk. Judge the trade by ROI against your cost of capital and the price risk you carried, and by whether the return beat simply holding cash for the same period. A repeatable 15% margin on quick-turning lots is a strong merchandising result.
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References
- University of Missouri Extension, “Agricultural Commodity Futures Contract Specifications” (G601): standard contract sizes and price quotes for grains, livestock, and energy, including the 5,000-bushel corn contract. MU Extension: Agricultural Commodity Futures Contract Specifications. Accessed October 2026.
- Interactive Brokers Campus, “Agricultural Futures Contracts: Essential Elements”: contract size, tick value, margin, and settlement explained, the pricing mechanics behind the sell prices used here. Interactive Brokers: Agricultural Futures Contracts, Essential Elements. Accessed October 2026.
- MarketsWiki, “CME Group Wheat”: full contract specifications for the 5,000-bushel wheat future, including the quarter-cent tick worth $12.50 per contract. MarketsWiki: CME Group Wheat. Accessed October 2026.
- CME Group announcement via DTN, “Chicago Mercantile Exchange Launches Sorghum Basis Futures Contract” (August 2026): basis defined as the price difference between a cash commodity and its futures benchmark. DTN: CME Launches Sorghum Basis Futures Contract. Accessed October 2026.
- tastytrade, “How to Trade Grain Futures”: contract sizes, tick values, and delivery mechanics for CME grain markets. tastytrade: How to Trade Grain Futures. Accessed October 2026.