Which is the best deal?

Compare weight, volume, length, or item prices instantly

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How to use this calculator

  1. Enter the product price.
  2. Enter the pack count, quantity, and unit.
  3. Add another item to compare the price per unit and find the lowest cost.

How to compare price per unit

Enter the shelf price and the product size for each option. The calculator converts matching products into the same base unit so you can compare like for like before you buy.

This is useful for groceries, drinks, toiletries, pantry staples, cleaning products, and any multipack where the cheaper sticker price is not always the better deal.

What this calculator compares

  • Weight comparisons in grams, kilograms, pounds, and ounces
  • Volume comparisons in milliliters, liters, fluid ounces, quarts, pints, and gallons
  • Length comparisons in inches, feet, yards, meters, and centimeters
  • Per-item comparisons for packs, bundles, and unit counts

Related calculators

Go to the main calculator Compare unit price by weight in grams, kilograms, pounds, and ounces. Compare unit price by volume in milliliters, liters, fluid ounces, pints, quarts, and gallons. Compare unit price by length in centimeters, meters, inches, feet, and yards.