Unit Price Calculator
Compare the unit price of two products to find the best value. Calculates price per 100g or per unit.
How to use this tool
- Enter price a, weight a, price b and weight b in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your cheaper option saves and the full breakdown beneath it.
Compare two products to instantly find the better value per 100g.
Frequently asked questions
- How do I compare unit prices?
- Divide each product's price by its weight in grams, then multiply by 100 to get the cost per 100g. The lower figure is better value.