Gross Margin & Product Markup Calculator
Compute gross profit margin, markup percentage, and optimal selling prices.
Privacy First: 100% Client-Side Processing
Processed in your browser. Files are never uploaded.
How to Use the Margin Calculator: Gross Margin, Markup & Profit Formula
- 1Enter your unit cost of goods sold (COGS).
- 2Choose between entering your target selling price or desired markup percentage.
- 3Inspect gross profit dollar amount, gross margin percentage, and markup percentage.
- 4Adjust pricing targets to meet target commercial profitability goals.
Formula & How It Works
Margin vs Markup Equations
Standard retail accounting formulas for margin and markup.
Worked Examples
Retail Product with $60 Cost and $100 Price
Input: Cost: $60, Selling Price: $100
Explanation: A $40 profit on a $100 price represents a 40% margin, achieved by applying a 66.67% markup onto the $60 wholesale cost.
Frequently Asked Questions
What is the difference between margin and markup?▼
Margin measures profit relative to the selling price, while markup measures profit relative to wholesale cost. Margin is always lower than the equivalent markup.
How do I calculate a 50% profit margin?▼
To achieve a 50% profit margin, you must double your cost (a 100% markup). If your cost is $40, your selling price must be $80.
What is a healthy gross profit margin for e-commerce?▼
Most consumer e-commerce businesses aim for a gross margin of 40% to 60% to absorb advertising acquisition costs, fulfillment, and customer returns.
Does this calculator run offline in my browser?▼
Yes. All price calculations run 100% client-side with zero server roundtrips.
Quick Reference & Conversion Table
| Target Gross Margin | Equivalent Markup Required | Cost: $50 Selling Price | Cost: $100 Selling Price |
|---|---|---|---|
| 10% | 11.11% | $55.56 | $111.11 |
| 20% | 25.00% | $62.50 | $125.00 |
| 30% | 42.86% | $71.43 | $142.86 |
| 40% | 66.67% | $83.33 | $166.67 |
| 50% | 100.00% | $100.00 | $200.00 |
⚠️ Common Pitfalls to Avoid
- •Confusing margin with markup (e.g. adding 25% markup produces only a 20% margin, not a 25% margin).
- •Failing to account for payment gateway transaction fees and shipping in unit COGS.
💡 Practical Real-World Uses
- •Pricing wholesale inventory for e-commerce marketplaces (Amazon, Shopify).
- •Calculating restaurant dish food cost margins to maintain profitability.
Related Online Tools
Explore complementary calculators and converters with instant client-side execution
Sales Tax Calculator: Add Tax or Reverse Calculate Price
Add sales tax to net prices or reverse-calculate pre-tax amounts from gross totals.
eBay Fee Calculator: Calculate Final Value Fees & Profit
Compute eBay final value fees, shipping costs, and net seller profit margins.
PayPal Fee Calculator: Merchant & Invoicing Fees 2026
Compute PayPal merchant transaction fees and reverse-calculate invoice totals.
Hourly Rate Calculator: Freelance Billing & Day Rate
Calculate target freelance hourly billing rates based on income goals and expenses.
CD Calculator
Calculate interest earned, ending balance, and annual percentage yield (APY) on Certificate of Deposit accounts.
Credit Card Payoff Calculator
Calculate how quickly you can eliminate credit card balances and how much interest you save with larger payments.
Explore Other Tool Categories
Browse our full collection of 50 free web utilities
Unit Converters
Exact metric & imperial conversions for weight, length, temperature & volume.
Math & Education
Percentage changes, fractions, square roots, geometry & statistics.
Date & Time
Calendar arithmetic, business day intervals, stopwatch & multi-counter.
Home & Construction
Paint coverage, pool volume, topsoil, roof pitch, square footage & materials.