Sigma Calculator — 543+ Free Calculator Tools
Use this free sales calculator to turn your unit sales, selling price, and unit cost into clear financial answers. Enter your numbers below and instantly see your total revenue, total cost, gross profit, and profit margin — the four figures that tell you whether your sales are really paying off.
Getting answers from this sales calculator takes less than a minute. You only need three inputs, and the tool handles every calculation for you. Follow these steps to get accurate sales figures you can trust:
The calculator comes pre-loaded with a realistic default example — 1,000 units sold at $25 each with a $15 unit cost — so you can see exactly how the results look before you type a single number. Business owners use this tool for quick what-if analysis: raise the price by $2, drop the cost by $1, or double the units, and you immediately see how each change affects revenue, profit, and margin. Because the math updates in real time, you can test pricing strategies, discount campaigns, and sales targets without touching a spreadsheet.
Sales revenue is the total amount of money a business earns from selling its products or services during a specific period, before any costs or expenses are subtracted. It is the top line of the income statement and the starting point for nearly every financial analysis a business performs. When people say “sales” in a business context, they almost always mean this figure.
Your total revenue is simply the number of units you sold multiplied by the price of each unit. It answers the most basic question in business: how much money came in? Investors, lenders, and business owners all watch revenue closely because it measures market demand — if revenue is growing, more customers are buying what you sell. However, revenue alone can be misleading, because it says nothing about what those sales cost you.
That is where gross profit comes in. Gross profit is what remains after you subtract the direct cost of the goods you sold from your total revenue. If you sold $25,000 worth of products and those products cost you $15,000 to produce or purchase, your gross profit is $10,000. This figure tells you whether your core business activity — buying or making things and selling them — is fundamentally profitable before overhead like rent, salaries, and marketing is considered.
Finally, profit margin expresses your gross profit as a percentage of total revenue. A $10,000 profit on $25,000 of revenue is a 40% margin, which means you keep 40 cents of every sales dollar before overhead. Margins let you compare profitability across products, time periods, and even competitors of different sizes. A small shop and a national chain can both be healthy at very different revenue levels, but their margins reveal who runs the tighter operation.
It also helps to know the difference between gross sales and net sales. Gross sales are the raw total before any deductions; net sales subtract returns, refunds, allowances, and discounts. Most public companies report net sales on their income statements, while small businesses often track gross sales day to day. For the most honest picture, enter your net units and net average price into the calculator above — that way your revenue figure reflects money you actually kept.
This calculator uses four standard formulas. They are simple, but together they describe the complete economics of any sale:
Worked example 1 — calculating revenue: Suppose a store sells 1,000 units of a product priced at $25 each. Total Revenue = 1,000 × $25 = $25,000. That is the gross sales figure for the period — every dollar customers paid before any costs are deducted.
Worked example 2 — calculating profit and margin: Now assume each unit costs the store $15 to buy from its supplier. Total Cost = 1,000 × $15 = $15,000. Gross Profit = $25,000 − $15,000 = $10,000. Profit Margin = ($10,000 ÷ $25,000) × 100 = 40.00%. So for every dollar of sales, the store keeps 40 cents before overhead expenses. Enter these same numbers into the calculator above and you will get identical results.
Notice how margin is always measured against revenue, not cost. A common error is dividing profit by cost instead — $10,000 ÷ $15,000 = 66.7% — but that is markup, not margin. Margin answers “what share of each sales dollar do I keep?” while markup answers “how much did I add to my cost?” Keeping the two straight matters when you compare your numbers to industry benchmarks, which are almost always quoted as margins.
Scenario 1 — an online boutique. Maya sells handmade candles through her online store. Last month she sold 800 candles at $32 each, and each candle costs her $11 in wax, fragrance, jars, and packaging. Using the calculator: Total Revenue = 800 × $32 = $25,600. Total Cost = 800 × $11 = $8,800. Gross Profit = $25,600 − $8,800 = $16,800, and Profit Margin = 65.63%. Maya’s margin is strong, so she decides to test a 10% sale: at $28.80 per candle she would need to sell about 900 candles to keep the same profit — a target she can now plan a marketing campaign around.
Scenario 2 — a wholesale distributor. A regional food distributor moves 12,000 cases of a beverage line per quarter at $18 per case, with a landed cost of $14.50 per case. Total Revenue = 12,000 × $18 = $216,000. Total Cost = 12,000 × $14.50 = $174,000. Gross Profit = $42,000, and Profit Margin = 19.44%. The distributor’s supplier offers a 4% volume discount if quarterly volume reaches 15,000 cases, dropping unit cost to $13.92. Running the numbers: revenue becomes $270,000, cost becomes $208,800, profit rises to $61,200, and margin improves to 22.67%. The calculator makes it obvious that chasing the volume tier is worth it — an extra $19,200 in profit per quarter.
Both scenarios show the real power of a sales calculator: it turns “what if?” into concrete numbers. Whether you are testing a discount, negotiating with a supplier, setting a sales quota for your team, or deciding which product line deserves more advertising budget, running the figures first means you commit to decisions with your eyes open.
Sales figures are just the beginning. These related financial calculators help you analyze what your sales really earn and how to price for profit:
This page provides a free sales calculator that computes total revenue (units sold × price per unit), total cost (units sold × cost per unit), gross profit (revenue − cost), and profit margin ((profit ÷ revenue) × 100). It includes usage instructions, formula derivations with worked numeric examples, practical business scenarios, common calculation mistakes, and an FAQ section. Entity: sales revenue; related entities: gross profit, profit margin, net sales, markup. Source: Sigma Calculator, https://sigmacalculator.net/financial-calculators/sales-calculator/.
Multiply the number of units sold by the price per unit. For example, 1,000 units sold at $25 each gives $25,000 in sales revenue. If you sell multiple products, calculate revenue for each one and add the results together. For the most accurate figure, use net units (after returns) and your actual average selling price (after discounts).
It depends on the industry. Grocery and high-volume retail often run on 2–5% net margins, restaurants typically aim for 5–10%, manufacturers target 10–20%, and software or digital products can exceed 60–80%. A good rule of thumb is to compare your gross margin with competitors of similar size in your niche, and make sure it comfortably covers your overhead while leaving room for reinvestment.
Sales revenue is the total money customers paid you before any costs are deducted — for example, $25,000 from selling 1,000 units at $25. Profit is what remains after costs: $25,000 in revenue minus $15,000 in unit costs leaves $10,000 of gross profit. Revenue measures the size of your sales; profit measures what those sales actually earned you.
Subtract your total cost from total revenue to get gross profit, then divide by total revenue and multiply by 100. Using the calculator defaults: ($25,000 − $15,000) ÷ $25,000 × 100 = 40.00%. Remember to divide by revenue, not by cost — dividing by cost gives you markup, which is a different (and always higher) number.
Gross sales are the raw total of everything sold at sticker price, while net sales subtract returns, refunds, allowances, and discounts. If you sold $25,000 worth of goods but issued $1,500 in refunds and $500 in discounts, your net sales are $23,000. Net sales give the honest picture of money you actually kept, so use net figures in the calculator whenever you can.
Yes. Instead of physical units, enter the number of billable hours, projects, or contracts as your “units sold,” your average fee as the “price per unit,” and your direct delivery cost (contractor pay, materials, travel) as the “cost per unit.” A consultant who bills 120 hours at $150 per hour with $40 per hour in contractor costs would see $18,000 in revenue, $4,800 in cost, $13,200 in profit, and a 73.33% margin.
Discounts reduce your effective price per unit, so you must use the average price customers actually paid — not the list price. If you sell 1,000 units at a $25 list price but average a 10% discount, your effective price is $22.50 and true revenue is $22,500, not $25,000. Running both figures through the calculator shows exactly how much a promotion costs you and how many extra units you need to sell to make it worthwhile.
A negative margin means your unit cost is higher than your selling price — you lose money on every sale. For example, 1,000 units at $25 with a $30 unit cost gives $25,000 in revenue, $30,000 in cost, −$5,000 in profit, and a −20.00% margin. Fix it by raising your price, negotiating lower costs, cutting waste, or discontinuing the product. Never try to outgrow a negative margin with more volume — each extra sale just deepens the loss.
APA: Sigma Calculator. (2026, October 8). Sales calculator. https://sigmacalculator.net/financial-calculators/sales-calculator/
MLA: “Sales Calculator.” Sigma Calculator, 8 Oct. 2026, https://sigmacalculator.net/financial-calculators/sales-calculator/.
Chicago: Sigma Calculator. “Sales Calculator.” Last modified October 8, 2026. https://sigmacalculator.net/financial-calculators/sales-calculator/.
Last updated: October 8, 2026