Margin Calculator Online

Calculate profit margin from cost and selling price.

About this tool

What this tool does

Margin measures profit as a share of the selling price. It helps compare products and test whether a discount leaves enough room above total cost.

How to read the result

Margin = (selling price - cost) / selling price × 100%. With cost 100 and price 150, profit is 50 and margin is 33.33%.

Practical guidance

Use the full relevant cost, including fees and fulfillment where appropriate. Tax treatment and overhead allocation depend on your accounting context.

Related tools

For the next step, you may also need: Markup Calculator, VAT Calculator Online, Net to Gross Calculator Online.

Calculate real e-commerce margin

Include packaging, fulfilment and other fixed costs as an additional cost per sale. Add marketplace or payment fees as a percentage of the net selling price. The calculator then shows profit, total sale costs and the real margin after those charges.

How to use

Enter the requested amounts.
Choose the calculation direction or rate.
Calculate and review every displayed value.
Copy the result or adjust the inputs for another scenario.

FAQ

Is margin the same as markup?

No. Margin is calculated as profit divided by selling price. Markup is calculated as profit divided by cost.

What is a good profit margin?

It depends on the industry, product type, sales channel and cost structure. Compare the result with your own business targets.

Does this calculator include VAT or sales tax?

No. Include taxes only if you want them to be part of the cost or price values you enter.

Can I use it for e-commerce pricing?

Yes. It is useful for quick price checks, but include marketplace fees, shipping, returns and advertising costs in your own calculation.

Is the result financial advice?

No. The result is informational and should be verified before making business decisions.

Is this a margin calculator online?

Yes. It calculates gross profit and profit margin from cost and selling price for quick business checks.

How do I calculate profit margin?

Subtract cost from selling price, divide the profit by selling price and multiply by 100.

What is the difference between margin and markup?

Margin is based on selling price. Markup is based on cost. The same transaction therefore produces different percentages.

Can I calculate margin after marketplace and payment fees?

Yes. Enter fixed expenses under additional cost and the percentage charged on the sale under sales fee. Both reduce the profit and real margin.