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How to Compare Pack Sizes by Unit Price

Bigger packs are not always cheaper per unit. Dividing price by quantity reveals the real deal in seconds.

What is the Unit Price Calculator?

This tool divides each price by its quantity to find the price per single unit, such as per gram or per item. The option with the lower unit price is the better value, even if its pack costs more overall. Make sure both quantities use the same unit before comparing.

How to use it

  1. Enter the price and quantity of the first option.
  2. Enter the price and quantity of the second option in the same unit.
  3. Read both unit prices and which option is the better value.

Worked example

Option A: price 6, quantity 12, unit price 0.50. Option B: price 5, quantity 8, unit price 0.63. Better value: Option A.

Which is better value: 6 for 12 units or 5 for 8 units?

The first option is better value. Its unit price is 6 divided by 12, which is 0.50, while the second is 5 divided by 8, which is 0.63. The first option costs less per unit.

Frequently asked questions

Do the quantities need the same unit?

Yes, compare grams with grams or items with items. Mixing units would make the comparison meaningless.

Is the cheaper pack always better value?

No, a cheaper pack can cost more per unit. The unit price, not the pack price, decides value.

Try the Unit Price Calculator free · All guides