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Profit Margin Calculator: The Complete Guide

Calculate gross margin, markup, profit, and selling price. Everything you need to know - plus a free tool to do it instantly.

Open the Margin tool

30-second summary

  • Set target margin ranges by product line or service category instead of using one blanket margin for everything
  • Include all direct costs before calculating margin, including packaging, fulfilment, commissions, or platform fees where relevant
  • Review margins regularly when supplier prices, freight costs, or discounting change
  • Use margin targets for pricing decisions and use markup mainly as a cost-plus reference
On this page
  1. What is margin?
  2. How it works
  3. Why it matters
  4. Common mistakes
  5. Best practices
  6. Related guides

What is margin?

AccountDesq’s Profit Margin Calculator helps you calculate gross profit, gross margin percentage, markup percentage, and selling price for products or services. Use it to compare margin vs markup, understand pricing more clearly, and work out the selling price needed to hit a target margin. It is useful for retailers, wholesalers, ecommerce sellers, consultants, agencies, manufacturers, and small businesses that need better pricing decisions without complex spreadsheets.

How it works

Choose the calculation mode, then enter your cost price, selling price, target margin, or markup depending on what you want to calculate. The calculator instantly works out profit, gross margin percentage, markup percentage, and selling price, helping you compare pricing outcomes and avoid margin mistakes.

Why it matters

Margin and markup are often confused, which leads many businesses to underprice their products or services. A proper margin calculator helps you understand your real profit, set better selling prices, and protect profitability when costs change.

Common mistakes

  • Confusing markup with margin and assuming they mean the same percentage
  • Pricing from competitor rates without knowing your own cost base and target margin
  • Ignoring shipping, packaging, transaction fees, or overhead when calculating cost price
  • Using a selling price that looks profitable in cash terms but produces a weak gross margin percentage

Best practices

  • Set target margin ranges by product line or service category instead of using one blanket margin for everything
  • Include all direct costs before calculating margin, including packaging, fulfilment, commissions, or platform fees where relevant
  • Review margins regularly when supplier prices, freight costs, or discounting change
  • Use margin targets for pricing decisions and use markup mainly as a cost-plus reference

Ready to put this into practice?

Use the free Profit Margin Calculator to create a real margin in under a minute - no signup, exports to PDF and Excel.

Open Margin tool