Unit price comparison calculator
Compare two pack sizes side by side. See which option costs less per ounce, count or litre before you buy the bigger one.
Simple calculator. We may merge overlapping tools later; this page stays online with its image. Uses the two pack prices and quantities you enter. How we research · How links work
The short answer
$6.49 for 12 works out to about $0.54 each. $9.97 for 24 is about $0.42 each, so the larger pack wins on unit price in this example.
Two packs
Better unit price
-
-
Examples
| A | B | Winner |
|---|---|---|
| $6.49 / 12 | $9.97 / 24 | B (~$0.42 vs ~$0.54) |
| $4 / 500 ml | $7 / 1 L | Tie at $0.008/ml |
| $15 / 30 | $20 / 50 | B |
In the aisle
If the bigger pack expires before you finish it, waste can erase the unit-price win.
Common questions
What counts as quantity?
Ounces, count of pods, sheets, or litres. Use the same unit on both sides.
What about different brands?
Unit price only compares size economics. Quality and how fast you use the product still matter.
Should tax be included?
Use the shelf or checkout prices you actually pay, with the same tax treatment on both.