Profit Margin Calculator
Calculate your gross profit margin, markup, and net profit to understand your business's profitability.
Business Data
Calculator guide
Profit Margin Calculator
Calculate gross profit, gross margin, and markup from revenue and cost of goods sold. Enter the amounts for the same product, order, or accounting period. The percentage result helps distinguish the share of revenue left after cost from a markup based on cost.
How to use the calculator
- 1Enter revenue for the sale or period and the related cost of goods sold.
- 2Use the same currency and matching scope for both amounts; do not compare monthly revenue with a single-unit cost.
- 3Calculate and review profit, margin, and markup. Add operating expenses separately if you need a net-profit view.
Important details to understand
1.Start with the right inputs
Check every number, date, unit, and selected mode before calculating. A correct formula can still give a misleading answer when an input is missing, entered in the wrong unit, or based on a different time period.
2.Know what the calculation includes
The method below describes what this tool uses. Real situations can involve extra rules, costs, calendar conventions, or personal details that are not part of the form, so compare the assumptions with your actual question.
3.Read the unit and rounding
Look at the label as well as the displayed number. Rounding can change the last digits, and results in different units or time periods are not directly comparable until you convert them consistently.
4.Treat the result as a useful check
Use the output to understand a calculation, explore a scenario, or make an initial estimate. When a result affects a formal deadline, a health decision, a contract, or a large payment, confirm it with the relevant source or qualified professional.
How the calculation works
Gross profit = revenue − cost. Gross margin = gross profit ÷ revenue × 100. Markup = gross profit ÷ cost × 100. Margin uses revenue as its base, while markup uses cost; they are different ratios. The calculator requires revenue above zero for the percentage calculation.
A worked example
At $100 revenue and $60 cost, gross profit is $40. Margin is 40%, while markup is 66.7% because the same $40 profit is compared with the $60 cost.
When this calculator is useful
Check basic product pricing, compare margin and markup, or estimate gross profit before other business expenses.
Planning ahead
Try a few realistic input values to see how a change in an amount, measurement, date, or rate affects the answer.
Learning the method
Follow the explanation and example to understand which inputs matter and how they are combined.
Checking your own work
Compare the result with a hand calculation, a worksheet, or a trusted source when you need an independent sense check.
Explaining a result
Keep the original inputs and units with the output so another person can understand what was calculated.
Tips for a more reliable answer
- Enter the values from the same source and keep units consistent throughout the calculation.
- Check that you selected the mode or option that matches the question you are trying to answer.
- Use the worked example to confirm you understand the inputs and the kind of result the tool returns.
- Save the inputs with the result so you can review or repeat the calculation later.
Limitations and assumptions
This calculation does not include operating expenses, taxes, refunds, discounts, labor outside COGS, or accounting policy. It is not a full net-profit or financial statement calculation. Use consistent definitions from your books.
Every result depends on the information entered and the method described above. The calculator cannot confirm that the inputs are complete or that its assumptions match a particular provider, policy, location, body, or real-world situation.
Frequently asked questions
Why are margin and markup different?
Margin divides profit by revenue; markup divides profit by cost.
Does gross margin include rent and marketing?
No. It uses the entered revenue and cost of goods sold only.
Can the calculator handle a loss?
Yes, if cost exceeds revenue, the calculated gross profit and margin can be negative.
Why might my result differ from another calculator?
Tools can use different assumptions, units, date conventions, included costs, or rounding rules. Compare the inputs and method descriptions before deciding that one result is wrong.
What should I check if the answer looks wrong?
Review the selected mode, each entered value, the units, and any optional fields. Then compare a simple example with the method described in this guide.
Can I rely on the result for an official or high-impact decision?
Use the result as an estimate or explanation and check the limitations listed for this tool. Confirm important decisions with the relevant official source or a qualified professional.