Margin Calculator
Choose what you want to calculate, enter the known values, then click Calculate.
What do you want to calculate?
To calculate margin, enter Cost and Revenue.
The selected result field is locked automatically. Enter the known values only.
Result
| Item | Value |
|---|
Margin Formula Table
| Requirement | Formula | Inputs Needed |
|---|---|---|
| Calculate Profit | Profit = Revenue − Cost | Revenue and Cost |
| Calculate Margin | Margin (%) = 100 × Profit ÷ Revenue | Revenue and Cost |
| Calculate Revenue from Margin | Revenue = Cost ÷ (1 − Margin ÷ 100) | Cost and Margin |
| Calculate Revenue from Profit | Revenue = Cost + Profit | Cost and Profit |
| Calculate Cost from Margin | Cost = Revenue × (1 − Margin ÷ 100) | Revenue and Margin |
| Calculate Cost from Profit | Cost = Revenue − Profit | Revenue and Profit |
Margin is based on revenue, not cost. If you want profit as a percentage of cost, that is markup, not margin.
Use this Margin Calculator to calculate profit margin, profit, revenue, or cost from two known values. It is useful for basic product pricing, sales analysis, and gross-margin estimates.
Margin Calculation Formulas
Profit is the difference between revenue and cost:
Profit = Revenue − Cost
Profit margin expresses profit as a percentage of revenue:
Margin % = Profit ÷ Revenue × 100
To calculate the revenue needed for a target margin:
Revenue = Cost ÷ (1 − Margin ÷ 100)
To calculate cost from revenue and margin:
Cost = Revenue × (1 − Margin ÷ 100)
If cost and profit are known:
Revenue = Cost + Profit
If revenue and profit are known:
Cost = Revenue − Profit
Worked Example
Suppose a product costs $70 and sells for $100.
Profit:
$100 − $70 = $30
Profit margin:
$30 ÷ $100 × 100 = 30%
The product therefore produces a $30 profit and a 30% margin based on the cost and revenue entered.
Margin vs. Markup
Margin and markup measure the same dollar profit from different starting points.
Margin % = Profit ÷ Revenue × 100
Markup % = Profit ÷ Cost × 100
Using the same $70 cost and $100 selling price:
Margin = 30%
Markup = $30 ÷ $70 × 100 ≈ 42.86%
For pricing calculations, make sure you know whether your target percentage refers to margin or markup.
Important Notes
- This calculator measures margin as profit divided by revenue, not profit divided by cost.
- The result depends on what you include in the cost value.
- For a product-level gross margin, cost may include direct costs such as the purchase or production cost.
- Shipping, payment-processing fees, discounts, refunds, labor, advertising, rent, taxes, VAT/GST, and other expenses are not automatically included.
- If relevant expenses are excluded from cost, the calculated profit should not be interpreted as final net business profit.
- Revenue and cost should use the same currency and represent the same transaction or accounting period.
- A negative margin means the entered cost exceeds revenue.
- A 100% margin is only mathematically possible when the corresponding cost is zero.
How to Use the Margin Calculator
Start with one clearly defined scenario and collect the values the calculator requests: cost, selling price, profit, margin, or markup. Use figures from current statements, quotes, pay records, contracts, or official documents whenever possible. Keep every rate and time period on the same basis before calculating. If one value is uncertain, enter a realistic estimate and then test a lower and higher alternative instead of treating a single forecast as certain.
Enter the values carefully, check the units, and calculate. The main results are gross profit, margin percentage, markup percentage, and missing price variable. Save the assumptions alongside the result so you can reproduce the calculation later. For comparisons, change only one major input at a time. That makes it easier to see which variable is responsible for the difference and reduces the chance of comparing scenarios built on inconsistent assumptions.
How to Interpret the Results
This calculator is designed to clarify that margin is based on selling price while markup is based on cost. The result is an estimate based on the values supplied, not a quote, approval, tax ruling, investment recommendation, or contractual promise. Read the output together with its assumptions and compare the total cost or benefit—not only the most attractive headline number. A result that looks better in the short term may be less suitable when fees, timing, risk, or long-term obligations are included.
For a useful sensitivity check, recalculate with a less favorable rate, a different term, a larger cost, or a smaller income or return. Note the point at which the decision changes. This break point often provides more practical insight than a single best-case result because it shows how much uncertainty the plan can absorb.
Scenario Checklist
Before acting, confirm the source and date of every input; distinguish percentages from decimal values; include relevant fees and recurring costs; align monthly and annual figures; and verify whether values are before or after tax. Also consider inflation, opportunity cost, liquidity, and risk where relevant. Document the scenario name and calculation date so later comparisons use the same basis.
Important limitation: overhead, discounts, returns, taxes, shipping, and product mix may need separate treatment. Rules, market conditions, provider terms, and personal circumstances can change. Verify material decisions with the appropriate lender, employer, tax authority, regulator, financial professional, or contract documentation.
Related Finance Calculators
Continue your comparison with the VAT Calculator and Percent Off Calculator. Using related calculators can reveal costs or assumptions that a single result does not capture.
Frequently Asked Questions
What does the Margin Calculator calculate?
It uses cost, selling price, profit, margin, or markup to estimate gross profit, margin percentage, markup percentage, and missing price variable. The exact fields and displayed results depend on the values entered and the calculator formula.
Which inputs have the biggest effect on the result?
The inputs with the greatest effect are usually the largest balances, prices, rates, time periods, payments, or recurring amounts. Change one of these at a time and compare the results to identify the most sensitive variable.
How accurate is the Margin Calculator?
It is mathematically accurate for the supplied inputs and stated assumptions. Real-world accuracy depends on the quality of those inputs and whether all relevant fees, taxes, timing rules, rate changes, and personal circumstances are represented.
How should I compare different scenarios?
Create a realistic base case, then a conservative case and an optimistic case. Keep units and timing consistent, alter one important assumption at a time, and compare total outcomes as well as periodic amounts.
Does the calculator include every tax, fee, and rule?
No general calculator can capture every jurisdiction, provider term, exemption, fee, or future change. Include additional costs where fields allow and confirm the final figures with current official documents or the relevant provider.
Can I use this result for an official financial decision?
Use it for education, planning, and initial comparison. Before signing, filing, investing, borrowing, or making another material commitment, confirm the assumptions and final numbers with authoritative documents and an appropriately qualified professional.