Profit Calculator
By Talcart · Last updated July 10, 2026
Profit Calculation Guide
Understanding Profit Calculation
Monthly Profit
Monthly Profit = (Investment × Annual Rate) / (12 × 100)
Example: $100,000 at 12% annual rate = $1,000 monthly profit
Total Profit
Total Profit = Monthly Profit × Number of Months
Example: $1,000 × 12 months = $12,000 total profit
Profit Calculator
This profit calculator converts revenue and costs into gross, operating and net profit, with the matching margin at each level. Enter $100,000 of revenue, $60,000 of cost of goods sold and $30,000 of operating expenses, and it returns $40,000 gross profit (40% margin) and $10,000 operating profit (10% margin) instantly — the numbers a P&L review actually turns on.
Key facts
- Gross profit = revenue − cost of goods sold; net profit = revenue − all expenses, interest and tax.
- $100,000 revenue with $60,000 COGS and $30,000 operating expenses leaves $10,000 operating profit — a 10% operating margin.
- A 40% gross margin means $0.40 of every revenue dollar survives product costs to cover overheads and profit.
- The same $50,000 profit is a 50% margin on $100,000 of revenue but only 5% on $1,000,000 — margin gives profit its scale.
What is the Profit Calculator?
Profit is the money a business keeps after subtracting costs from revenue, measured at three standard levels: gross profit (revenue minus cost of goods sold), operating profit (gross profit minus operating expenses), and net profit (what remains after all expenses, interest and tax). Each level answers a different question — gross profit tests product economics, operating profit tests the business model, and net profit is the bottom line owners can retain or distribute.
How does the Profit Calculator work?
The calculator applies the profit waterfall top-down. Gross profit = Revenue − COGS; operating profit = gross profit − operating expenses; net profit = operating profit − interest − tax. Each figure is then divided by revenue and multiplied by 100 to express it as a margin, because a dollar amount alone says little without scale. A $50,000 profit is a 50% margin on $100,000 of revenue but only a 5% margin on $1,000,000 — same profit, very different business.
What is the Profit Calculator formula?
- COGS – cost of goods sold
- All Expenses – COGS + operating + tax + interest
Profit waterfall on $100,000 revenue
| COGS | Gross profit | Gross margin | Operating expenses | Net profit | Net margin |
|---|---|---|---|---|---|
| $40,000 | $60,000 | 60% | $30,000 | $30,000 | 30% |
| $50,000 | $50,000 | 50% | $30,000 | $20,000 | 20% |
| $60,000 | $40,000 | 40% | $30,000 | $10,000 | 10% |
| $70,000 | $30,000 | 30% | $20,000 | $10,000 | 10% |
| $80,000 | $20,000 | 20% | $15,000 | $5,000 | 5% |
| $90,000 | $10,000 | 10% | $8,000 | $2,000 | 2% |
How do you use the Profit Calculator?
- Enter revenue.
- Enter cost of goods sold.
- Optional: operating expenses, tax.
- Read profit and margins.
Worked example
| Scenario | $100K revenue, $60K COGS, $20K opex |
| Calculation | Gross 40K; Operating 20K |
| Result | Gross margin 40%; operating margin 20%. |
Common use cases
Tips & best practices
Track profit by product line — averages hide unprofitable SKUs.
Frequently asked questions
A 10% net profit margin is a widely used benchmark for a healthy small business, with 20% considered strong and 5% considered thin. The right target depends heavily on industry: software companies often clear 20% net margins, while grocery retail typically operates below 5%. Compare your margin against direct competitors in the same sector rather than an all-industry average.
Gross profit is revenue minus only the cost of goods sold, while net profit subtracts every expense — COGS, operating costs, interest and tax. A business with $100,000 revenue and $60,000 COGS has $40,000 gross profit; after $30,000 of overheads and taxes it may keep just $10,000 net. Gross profit measures product economics; net profit measures the whole company.
Subtract total costs from total revenue: Profit = Revenue − Costs. Selling 1,000 units at $25 each with $15 of cost per unit yields $25,000 revenue, $15,000 cost and $10,000 profit — a 40% margin. For a full picture, subtract costs in stages (COGS first, then operating expenses, then interest and tax) to see gross, operating and net profit separately.
No — revenue is the total amount of sales before any costs, while profit is what remains after costs are deducted. A company can post $1,000,000 in revenue and still lose money if expenses exceed that figure. Confusing the two is one of the most common small-business errors; always price and plan from projected profit, not projected sales.
Operating profit is the profit earned from core business activities: revenue minus COGS and operating expenses, before interest and tax (often called EBIT). It strips out financing decisions and tax jurisdictions, so it is the cleanest way to compare the underlying business of two companies. A firm with $100,000 revenue, $60,000 COGS and $20,000 operating expenses has $20,000 operating profit — a 20% operating margin.
Yes — profit is an accounting result, while cash flow tracks money actually moving, and the two routinely diverge. A business showing $20,000 of profit can go broke if customers pay 90 days late while suppliers demand payment in 30, or if profit is tied up in inventory. Monitor cash flow alongside profit, especially when revenue is growing quickly.