Price Per Unit Calculator

Enter the price and size of two products to instantly see which gives you more for your money. Works for groceries, household goods, supplements, and anything sold by weight or count.

🏆 Product A is the better deal 10.6% cheaper/unit

Price

Quantity

Unit

per oz

$0.1559

✓ Best deal

Price

Quantity

Unit

per oz

$0.1744

Smart Shopping Tips

🛒

Bulk isn't always best

A larger package often costs less per oz — but only if you'll use it before it expires. Factor in waste.

🏷️

Check the shelf tag

Most US grocery stores are required to display unit price on shelf labels. This calculator helps when it's missing.

🔄

Sale + unit price

A 20% off sale on the small size can beat the "regular price" bulk option. Always run the numbers.

⚖️

Convert units first

Comparing oz to lb? 1 lb = 16 oz. Set both to the same unit for an accurate comparison.

Frequently Asked Questions

How do I calculate price per unit? ▼

Divide the total price by the number of units. Example: $4.99 ÷ 32 oz = $0.156 per oz. The lower the price per unit, the better the value.

Is the bigger size always cheaper per unit? ▼

Usually, but not always. Bulk sizes sometimes carry a premium for convenience packaging. Always compare — this calculator makes it instant.

Can I compare products with different units (oz vs lb)? ▼

For an accurate comparison, convert to the same unit first. 1 lb = 16 oz. Set both product units to "oz" and enter the converted quantities.

What is unit pricing? ▼

Unit pricing is the cost per standard measure (per oz, per 100g, per count, etc.). Most grocery stores display it on shelf labels. This calculator helps when the label is missing or unclear.

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