Selling Price Calculator

Enter your cost and a target profit margin (or markup) to get the exact price to charge. This is cost-plus pricing, with the formula shown so the number is never a mystery.

Read the guide: How to Calculate Selling Price from Cost and Margin

Cost & target

Target is a

Price to charge

$142.86

$100.00 cost + 30.00% margin

Profit per unit
$42.86
Margin
30.00%

For a margin target, the price is cost ÷ (1 − margin) — not cost plus the margin %. Include marketplace fees and shipping in your cost so the margin holds up.

How it works

  1. 1

    Enter your cost

    Add the total cost per unit, including fees you want covered.

  2. 2

    Set the target

    Choose a target margin (a share of price) or a markup (a share of cost).

  3. 3

    Get the price

    See the selling price to charge, plus the profit it gives you.

Instant & 100% private — nothing is uploaded

Every calculation runs locally in your browser. The income, balances and goals you enter stay on your own device and are never sent to a server — nothing is stored, logged or shared.

Frequently asked questions

How do I calculate selling price from cost and margin?
Divide the cost by 1 minus the margin as a decimal. For a $100 cost at a 20% target margin: 100 ÷ (1 − 0.20) = $125.
Why can’t I just add my margin % to the cost?
Because margin is a percentage of the final price, not the cost. Adding 20% to a $100 cost gives $120, which is only a 16.7% margin. Dividing by (1 − 0.20) reaches a true 20%.
What is cost-plus pricing?
You take your total cost per unit and add a set markup: Selling Price = Cost × (1 + markup %). It guarantees each sale covers cost plus a fixed profit.
Should I include selling fees in my cost?
Yes, if you want the margin to hold. Marketplace fees, shipping and packaging should be in the cost figure, otherwise your real margin ends up lower than the target.
Is my data sent anywhere?
No. Every calculation runs in your browser. Nothing you type is uploaded, logged or stored, and the numbers reset when you close the tab.

Important

For information and planning only — not financial, tax or legal advice. These figures are estimates; rates, fees and rules vary, so confirm anything that affects a real decision with a qualified professional or the official source.

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