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unit price comparison calculator

Unit Price Calculator

Turn different pack sizes into one comparable number and spot the genuinely better buy.

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Enter your values, then calculate.

Inputs stay in this browser. We record only an anonymous “tool used” event, never your values.

How it works

Unit price = total pack price ÷ total quantity. Use the same base unit for every product you compare.

Three practical tips

  • Convert kilograms to grams before comparing if labels differ.
  • Check multipacks for the total quantity, not one item.
  • Factor in likely waste when buying perishables.

Can I compare any units?

Yes. Enter a consistent quantity and label—for example grams for both packs—and compare the resulting price per unit.