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Unit Price Comparator

Math

Compare two or more package options by price and quantity to find the true cost per unit and flag the cheapest.

Enter each package option's total price and its quantity in a shared unit (grams, litres, sheet count, whatever the label on the shelf uses) and this tool divides the two to find the real cost per unit, then ranks every option against the cheapest one. It is the arithmetic behind the small unit-price line most grocery store shelf tags already print, useful when you're comparing across brands or store formats that don't show it, or when you want to check the math on a bulk-size claim before you buy it. Pure division and comparison over the numbers you type in, it never converts between units (grams to ounces, for example), so make sure every option's quantity is already expressed the same way.

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How to use Unit Price Comparator

  • 1.Enter a label, total price, and quantity for at least two package options, using the same unit of quantity across all of them.
  • 2.Add more rows for additional options with the "+ Add option" button.
  • 3.Read the per-unit price for each option; the cheapest is marked, and every other option shows how much more expensive it is by percentage.

Frequently asked questions

Does it convert between units, like ounces to grams?
No. Enter every option's quantity in the same unit yourself; the tool only divides price by quantity, it doesn't know what unit you used.
What happens if two options tie on unit price?
Both are marked as the best value, and their percentMoreThanBest is 0.
Can I compare more than two options at once?
Yes, add as many rows as you need; the comparison scales to any number of options.
Does this account for coupons, taxes, or membership fees?
No, it's pure price-over-quantity arithmetic on the numbers you enter. Factor in any discounts or fees yourself before comparing.

Use via API, SDK, or MCP

cURL# Free: 1,000 req/day · Pro: 10,000 req/day
curl -X POST https://api.utilix.tech/v1/tools/unit-price-comparator \
  -H "Authorization: Bearer utx_live_..." \
  -H "Content-Type: application/json" \
  -d '{"items":[{"label":"12-pack","price":6,"quantity":12},{"label":"24-pack","price":10,"quantity":24}]}'

Get an API key from your dashboard · Full API docs →

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