Unit Price Comparison Calculator

Find the better deal by price per unit

Item A
$
Item B
$
Better deal
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—

Unit Price Comparison Calculator — guide & how to use

What it does

This calculator finds the better deal between two items by computing each one's price per unit (price ÷ size) and showing which is cheaper and by how much. Use it at the grocery store, for bulk buying, or any time the sizes don't match. Calculated privately in your browser, free.

How to use it

  1. Enter Item A's price and its size or quantity (use the same unit for both).
  2. Enter Item B's price and size.
  3. See which is the better deal and the price per unit for each.

How to embed this tool on your website

No account, no coding. Copy the embed code and paste it where you want it to appear:

<iframe src="https://snaptoolsuite.com/unit-price-comparison/?embed=1"
  style="width:100%;max-width:560px;height:840px;border:0;"
  title="Unit Price Comparison Calculator" loading="lazy"></iframe>
<p>Free <a href="https://snaptoolsuite.com/unit-price-comparison/">Unit Price Comparison Calculator</a> by Snap Tool Suite</p>
2 Paste it on your page
3 It just works

See it live: view a real embed example →

Frequently asked questions

How do you compare unit prices?

Divide each price by its size for price per unit; the lower one wins. This tool shows how much cheaper, in percent.

Is bigger always cheaper per unit?

Usually, but not always — promos and brands can flip it, which is why comparing per-unit matters.

Is it really free?

Yes. 100% free, everything runs in your browser.

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🔒 Everything is calculated in your browser. We don't store or sell your data.