Profit Calculator
Where the margin calculator looks at one sale, this tool looks at totals: enter revenue and total costs for any period — a day, an order, a month — and get the profit and margin, plus per-unit figures if you tell it how many units were sold.
Profit from revenue and costs
Example: revenue 12,500 minus costs 9,800 is 2,700 profit.
One subtraction, three profits
The arithmetic is a subtraction — profit = revenue − costs — and the margin is that profit as a share of revenue. In the worked example (computed by the same engine as the form above), 12,500 of revenue against 9,800 of costs yields 2,700, a 21.6% margin. What makes the number meaningful is what you put in the costs field: direct costs only give gross profit, add overheads for operating profit, add everything for the bottom line. The calculator doesn't decide for you — it makes each version instant so you can try all three.
Unit economics: the optional third field
Supplying the units sold divides everything through: 50 revenue, 39.2 cost, and 10.8 profit per unit in the example. Per-unit profit is the number pricing decisions actually turn on — if it's thin, raising volume mostly raises workload. To ask the reverse question, "how many units until fixed costs are covered?", use the break-even calculator; to set a price from cost, the markup calculator is the right direction.
Frequently asked questions
What is the difference between profit and revenue?
Revenue is everything that came in; profit is what remains after costs go out. Selling 12,500 worth of goods that cost 9,800 to buy and sell leaves a profit of 2,700 — the revenue figure alone says nothing about whether the period was worth it.
Which costs should I include?
That choice decides which profit you get. Only the direct cost of goods gives gross profit; add rent, wages, and marketing for operating profit; add interest and taxes for net profit. Enter whichever total matches the question you are asking — the subtraction is the same.
What does a negative result mean?
Costs exceeded revenue: a loss. The calculator reports the shortfall and the (negative) margin rather than refusing the input, because "how much did we lose?" is as legitimate a question as "how much did we make?".
What is the per-unit breakdown for?
Divide period totals by the number of units sold and you get unit economics: with 250 units, 50 of revenue and 39.2 of cost per unit, each sale contributed 10.8. If that per-unit profit is healthy but the total is not, the problem is volume, not pricing.
Is profit the same as cash in the bank?
No. Profit compares revenue earned with costs incurred over a period; cash depends on when invoices are actually paid, inventory bought, and loans drawn. A profitable period can still leave the account emptier than it started.
Your revenue and cost figures stay on your device — calculations run in the browser and are never sent to a server. Formulas are tested, typed functions; the methodology page documents the rounding policy.