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Tools / Unit price comparison (price per kg / litre)

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Unit price comparison: which pack is cheaper?

Enter price and quantity of up to three products in the same unit (g, ml or pieces).

✓ Free · ✓ no sign-up · ✓ no cookies · ✓ runs in your browser

Product A

Product B

Product C (optional)

Cheapest
–

Price per kg/litre = price ÷ quantity × 1,000. In Germany shops must show this unit price (Grundpreis) next to the price (§ 4 PAngV) – but the comparison only works if you look at the same unit.

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🔒 Runs entirely in your browser – nothing you enter is uploaded or stored.

How to use it

  1. Enter price and quantity of each product.
  2. Use the same unit for all (e.g. grams).
  3. See the cheapest unit price and the difference.
Your inputs live only in the link, not on our server.

Last checked: October 2026 · Based on: § 4 German Price Indication Ordinance (PAngV) – unit price. Found a mistake? Use the form below – we fix confirmed errors and update the date.

Frequently asked questions

Is the big pack always cheaper?

No – supermarket offers on small packs are often cheaper per kg than the large pack.

What is the Grundpreis?

The price per kilogram, litre or other unit that shops in Germany have to show (Preisangabenverordnung).

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