Desired Margin Price Calculator

The price that delivers the margin you want.

Calculate the selling price needed to achieve a target profit margin from a known unit cost, including fees.

Written and maintained by Mohit PatelLast checked August 4, 2026How we build these

Currency

Unit cost

Target margin

Percentage fees

Marketplace commission and payment processing. These scale with price, so they belong inside the calculation.

Selling price

$40.00

for a 45.0% margin

Profit per unit$18.00

Fees at this price$0.00

Wrong method (cost + margin%)$31.90

That would shortfall by$8.10

Adding the margin percentage to cost is the common error. It applies the percentage to the wrong base and always undershoots.

How the Desired Margin Price Calculator works

Working forwards from cost gives you whatever margin happens to fall out. Working backwards from the margin you need gives you the price you must actually charge, which is the direction pricing should run.

Also known as: price for target margin · what to charge for a given margin · price from desired profit percentage

How it is calculated

To hit a target margin, price is cost divided by one minus the margin: price = cost ÷ (1 − margin). Not cost times one plus the margin, which is the markup formula and produces a materially lower price.

The reason it is division is that the margin is a percentage of the price you are solving for, not of the cost you already know. Any target expressed as a share of the unknown belongs in the denominator, and this pattern recurs everywhere: reverse VAT, reverse payment fees, break-even pricing on marketplaces.

Numbers on it

Cost $22, target margin 45%. Price = 22 ÷ 0.55 = $40. Profit is $18 on a $40 price, which is exactly 45%.

The mistaken version adds 45% to $22 and gets $31.90, on which the margin is 31%. The intended 45% has become 31%, fourteen points lost on a calculation that looked right.

The gap widens with the target. At a 60% target the correct price is $55 and the mistaken one is $35.20. At 70% the correct price is $73.33 and the mistaken one is $37.40. Anyone pricing high-margin products with the wrong formula is barely covering cost.

What it does not tell you

The formula answers what price you need and says nothing about what the market will pay. A calculation showing a required price of $73.33 against a market that pays $45 is telling you the cost base is wrong, not the price.

It also depends entirely on the cost being complete. Using the supplier invoice rather than the landed and fulfilled cost produces a price that hits the target on paper and misses it in reality by whatever was left out.

What follows from it

Treat it as the floor and set the actual price from the market, checking it clears the floor. Where the market price is well above, that is value being captured rather than a mistake to correct.

Where the market price is below the floor, the options are a cheaper cost base, a repositioned product that justifies more, or dropping the line. Selling below the floor while hoping volume compensates is the one option the arithmetic rules out, because volume does not change the per-unit shortfall.

Working the same formula in reverse

The same relationship answers the opposite question: given a market price, what is the maximum cost that still hits the margin? Cost = price × (1 − margin).

At a $40 market price and a 45% target, the maximum cost is $22. That number is worth more than it looks, because it converts a pricing question into a sourcing brief. A supplier quoting $26 is not a negotiation about a few pounds; they are four pounds above what the product can support, and knowing that before the conversation changes how it goes.

It also sets the specification. If nothing can be sourced at $22 with the features intended, the product either changes or does not launch, and finding that out at the quotation stage costs nothing, while finding it out after tooling costs everything.

Where to go next

The Desired Margin Price question rarely arrives on its own. These are the ones that usually come with it:

Selling Price from Margin Calculator — Price from cost and target margin, fees included.
Cost Plus Pricing Calculator — Price from cost and a target markup.
Margin After Fees Calculator — What the margin becomes once platforms take their cut.
Etsy Fee Calculator — Every Etsy fee on one sale, itemised.

Not financial advice. Marketplace fees change, and they vary by country, plan and seller status. Every rate here is an editable default, not a quoted price, check the platform's current fee schedule before you price a product against it. This is not tax or business advice.

Frequently asked questions

How do I price for a specific margin?

Price = cost ÷ (1 − margin as a decimal). For a 40% margin on a £15 cost: 15 ÷ 0.60 = £25. Do not add 40% to the cost, that gives £21 and a 28.6% margin.

How do percentage fees affect the target price?

They have to be inside the calculation, because they scale with the price you set. Price = cost ÷ (1 − margin − fee rate). Ignoring this is why sellers hit their target margin on paper and miss it on the payout.

Why can't I just add the margin to my cost?

Because margin is a share of the price, not the cost. Adding 40% to cost applies the percentage to the wrong base and always undershoots. The gap widens as the target margin rises.

What if the required price is above the market?

Then the cost base is the problem, not the pricing. Either reduce unit cost, differentiate enough to justify the premium, or accept a lower margin knowingly. Pricing above what buyers will pay is not a solution.