Cost Per Ounce Calculator
Compare snacks, cereal, pantry goods, and other packaged foods by cost per ounce, including sale and multi-buy offers.
Choose a deal only if the shelf tag changes the price.
Use the final shelf offer, like 2 for $5.
Recent comparison
How to use this cost per ounce calculator
- Enter the product price or choose a deal type.
- Enter the pack count and ounces per pack.
- Add another option to compare the cost per ounce and find the better value.
Cost per ounce formula
price after deal / total ounces = cost per ounce
Use total package weight when comparing snack bags, cereal boxes, pantry goods, and multipacks.
Evergreen example
Product A costs $4 for 8 ounces. Product B costs $6 for 16 ounces. Product A is $0.50 per ounce, while Product B is $0.375 per ounce, so Product B is cheaper by weight.
What can mislead you
- Multipacks: count all ounces across every inner bag.
- Family-size labels: a bigger bag is not automatically cheaper per ounce.
- Bag size: front-label size claims matter less than total package weight.
- Serving count vs weight: cost per serving and cost per ounce answer different questions.
- Bulk packs: larger packs can still lose after sale math or storage waste.