About This Calculator
Unit price is the cost per standard unit of measure (per ounce, per liter, etc.). It's the most reliable way to compare products of different sizes — the product with the lowest unit price gives you the most for your money.
Shopping tips
- Bigger isn't always cheaper per unit — always check the unit price.
- Store brands often have a 20–40% lower unit price than name brands for identical products.
- Club store bulk packs are usually 15–30% cheaper per unit than supermarkets.
- Sale prices can make a smaller package cheaper per unit than a bulk one — always compare.
Frequently asked questions
How does this unit price calculator work?
The unit price calculator divides each item's price by its quantity to find the cost per unit, normalizes compatible units such as ounces and pounds, and highlights which option is the best value.
How do I compare prices with different sizes?
Enter each product's price, quantity, and unit. The tool converts comparable units to a common base, so you can fairly compare a 16 oz pack against a 3 lb bag, for example.
What is unit price?
Unit price is the cost per single unit of measure — per ounce, per liter, or per count. Comparing unit prices reveals the true best deal regardless of package size.