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Unit Price Comparator
Compare cost-per-unit across products to find the best shopping value.
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About this tool
Stop guessing which package size is the best deal. Enter a product name, total price, quantity, and unit (kg, g, lb, oz, L, mL, fl oz, count, etc.) for each item. The comparator normalises all weights to grams and all volumes to millilitres so you can compare a 500 g jar against a 1 lb tin side by side. Results are sorted cheapest first and the best-value item is highlighted. Save your comparison lists to localStorage so you can revisit them on your next shopping trip.
How to use
- 1 Click 'Add Product' and fill in name, price, quantity, and unit.
- 2 Add as many products as you want to compare.
- 3 The table automatically sorts by price per unit, cheapest first.
- 4 The green 'Best Value' badge marks the cheapest option.
- 5 Click 'Save List' to store the comparison in localStorage.
- 6 Use the Saved Lists dropdown to reload a previous comparison.
Frequently Asked Questions
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