Free tools
The free pricing calculator — set a selling price from your cost
Turn what you paid for a pack into a selling price and a profit per piece, and understand the difference between markup and margin.
2 min read · Updated September 29, 2026
The pricing calculator answers one question: given what an item costs me, what should I sell it for? It is free, needs no account, and runs entirely in your browser, so nothing you type is sent anywhere.
Use it
- Pick your currency. It starts on US dollars, and the choice is remembered on your device.
- Enter what you paid. This can be for a whole pack or box, or for one piece.
- Enter how many pieces that bought you. Leave it at 1 for a single piece.
- Choose whether you think in profit margin or markup.
- Enter the percentage you want.
It shows the price to sell each piece at, your profit per piece and per full pack, and the margin and markup at that price.
Markup versus margin
Both describe the same profit, measured against different things:
- Markup is profit as a share of your cost.
- Margin is profit as a share of the selling price.
An item that costs 100 and sells for 125 has a 25% markup and a 20% margin. This is the most common way a small shop underprices: wanting to keep 25% of each sale, but adding 25% to the cost. To keep 25% of the sale, the calculator needs a margin of 25%, which puts that item at about 133.33.
Why the price is rounded up
The exact price is often something like 10.42. Shelf prices are usually whole amounts, and the calculator rounds up to the next whole unit, so the rounding never takes a bite out of your profit. The result line shows the exact figure too, and the margin and markup at the price you will actually charge.
From estimate to real numbers
The calculator works from one cost you type in. Kasenso keeps the real cost of every product through its recipe, and Price Lab models a price change against your actual sales.
Frequently asked questions
What is the difference between markup and margin?
Markup is profit divided by cost. Margin is profit divided by the selling price. For the same sale, markup is always the bigger number.
Why can't I enter a margin of 100%?
A 100% margin would mean you keep the entire sale and the item cost you nothing. Since there is always a cost, no selling price can do that.
Does this include tax?
No. It works on the price before any tax. If you charge tax, add it at the register, set under tax and service charge.
Is my data saved or sent anywhere?
No. The numbers are calculated in your browser and disappear when you close the page.