Unit Price Calculator for Shopping
Which pack is cheaper? Type the price and size of each one and see the price per kg, litre or item.
Packs to compare
Type the price and size from each label. Each pack can use its own unit, for example 500 g and 2 lb.
Which is cheaper?
Fill in two packs to compare.
Each needs a price and a size.
Share and settings
Saved only in this browser on this device, so it is still here next time. Your data is never sent anywhere.
Questions
What is a unit price?
It is the price for the same amount of each product, for example per kg, per litre or per item. A big pack is not always cheaper: comparing the price per kg shows the real deal.
What does “The same 1.2 kg bought this way costs” mean?
It is what you would pay for the same amount as the cheapest pack if you bought it at this pack’s price per kg. The difference is what the cheapest pack saves you.
How do I enter a multipack or a “3 for 5” offer?
Tap + It is a multipack or multi-buy. For 6 cans of 330 ml at 4.50, type price 4.50, size 330 ml and how many 6. For “3 for 5.00”, type price 5.00, how many 3 and the size of one.
Why is one pack “not compared”?
A weight cannot be compared with a liquid, a length or a number of items. Change that pack’s unit so all packs are measured the same way, for example all in g or kg.
Which fluid ounce does it use?
fl oz is the US fluid ounce (29.57 ml) used on US labels. Pick UK fl oz (28.41 ml) for British labels. Pints are UK (568 ml) or US (473 ml); you choose which.
Is it private?
Yes. There is no account. What you type stays in this browser on this device, and the app works offline once it has loaded, so it works in a shop with no signal.