Unit price
Compare two products by unit price and see which is cheaper.
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How it works
Compares two products by what each unit of measure really costs (per kilo, litre, or piece) rather than by package price. It converts grams and kilos, or millilitres and litres, automatically before comparing.
Formula
unit price = price ÷ quantity (in the base unit)
Example
500 g for €2.40 is €4.80/kg; 1.5 kg for €6.60 is €4.40/kg. The second is cheaper even though it costs more overall.
Frequently asked questions
Can I compare grams with litres?
No: it only makes sense to compare like with like (weight with weight, volume with volume, items with items).
Is the bigger pack always cheaper?
Not always, which is why checking the price per unit before deciding is worthwhile.