Price Per Ounce Calculator
Compare unit prices across package sizes.
Enter your values
ⓘ Live results
Results
- Product A unit price
- $0.3744/oz
- Product B unit price
- $0.3389/oz
- Better deal
- Product B
- Savings choosing better deal
- $0.99 on largest size
Quick answer
Unit price is the total price divided by quantity, so lower price per ounce (or gram, litre, etc.) is the better deal.
unit price = total price / quantity
How to use the Price Per Ounce Calculator
- 1Enter the price and quantity for each product.
- 2The unit works for any consistent measure — ounces, grams, litres, count.
- 3Lower unit price is the better value, regardless of the total sticker price.
Worked example
Using the values the calculator loads with:
Inputs
- Product A price5.99 $
- Product A quantity16 oz
- Product B price9.49 $
- Product B quantity28 oz
Results
- Product A unit price$0.3744/oz
- Product B unit price$0.3389/oz
- Better dealProduct B
- Savings choosing better deal$0.99 on largest size
Frequently asked questions
Why does the bigger size cost more overall but still win?
Total price includes more product; unit price normalizes for size so you compare fairly.
Does this work for count-based items?
Yes — enter number of items instead of ounces for things like paper towel sheets or diaper counts.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.