Do I need to use the same units?

Yes, for an accurate comparison, ensure both quantities are in the same units (e.g. both in grams or both in ounces).

Unit Price Comparator – Smart Shopping Service | CalcTools

Compare two items to find the best value for money. Essential service for grocery budgeting.

Is the 'Family Size' pack actually a bargain, or just a bigger box? Retail marketing often hides the true cost of items by using different weights and sizes. Our Unit Price service cuts through the noise, calculating the exact price per gram or ounce for two items side-by-side. It is the ultimate service for the budget-conscious shopper who wants to save money every single week.

Item A

Price

Weight/Vol

Item B

Price

Weight/Vol

Best Value Result

Item B is the winner!

Item A: 5.0000 / unit vs Item B: 4.6667 / unit

Item A Price10

Item A Qty2

Item B Price14

Item B Qty3

Difference0.3333

How it Works

The tool performs two simultaneous division operations, calculating the cost per unit of mass or volume. It then highlights the lower result and provides the exact percentage savings between the two options.

Calculation Formula

Unit Price = Total Price / Quantity

Calculation Examples

1. **Cereal**: 500g for $4.00 vs 750g for $5.50 = **750g is 8.3% cheaper**.

Why use this tool in your daily life?

Defeat deceptive pricing. This tool empowers you to be a more efficient consumer, ensuring that every dollar you spend at the store goes as far as possible.