Unit Price Calculator
The bigger package is not always cheaper. Compare two products by price per unit — per ounce, pound or count — to see which is truly the better deal, regardless of the package size on the shelf.
Your numbers
Result
- Unit price A
- $3.00
- Unit price B
- $2.50
- Difference
- 16.67%
| Product | Price per unit |
|---|---|
| Product A | $3.00 |
| Product B | $2.50 |
How to compare fairly
Divide each price by its quantity to get the price per unit: a $3 item of 1 unit is $3 each; a $5 item of 2 units is $2.50 each — cheaper, despite the higher sticker price. Use the same unit (ounces, pounds, count) for both.
Watch the package tricks
"Buy the big one, it's cheaper" is often true — but not always. Smaller or on-sale packages sometimes beat the family size on unit price. Many stores print a unit price on the shelf tag; this calculator lets you check it, or compare items the tag does not line up.
Same unit, honest comparison
The whole point is a like-for-like number. If one item is priced by weight and another by count, convert to a shared measure first, or the comparison is meaningless. Ounces vs. ounces, or servings vs. servings — never ounces vs. servings.
Frequently asked questions
Sources
- Consumer math — unit-price comparison
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