Skip to content
Convertto

Unit Price Comparator

Work out which pack size is actually cheaper per unit, weight or volume.

Comparing pack sizes means converting every price to the same unit. Enter each product's price and size — in grams, kilograms, millilitres, litres, ounces, pounds or a plain count — and this tool normalises them all, ranks them by price per kilogram or litre, and shows how much more the worse options cost.

Runs in your browser
Privacy
Runs entirely in your browser — nothing is uploaded
Cost
Free, unlimited, no sign-up

Frequently asked questions

Is the biggest pack always cheapest per unit?

No. Retailers rely on the assumption, and studies of supermarket pricing regularly find larger packs costing more per unit than smaller ones — particularly where a promotion applies to the smaller size.

How to use the unit price comparator

  1. 1Enter or paste your products.
  2. 2Choose the currency symbol.
  3. 3The result appears immediately — copy or download it.

Embed this tool

Put the working unit price comparator on your own site. It runs in your visitors' browsers exactly as it does here — free, no account, nothing uploaded.

Share this tool

Related tools

Weighted Decision MatrixScore options against weighted criteria and see which choice actually wins.Discount CalculatorWork out sale prices, stacked discounts and how much you actually save.Mortgage Comparison CalculatorCompare two loan offers side by side — payment, total interest and the true cost with fees.Rent vs Buy CalculatorCompare the total cost of renting against buying over a period you choose.Compare Two PDFsSee two versions side by side, overlaid or wiped between — with every changed area outlined.Text Diff CheckerCompare two texts and highlight exactly what was added and removed.

Last updated

More calculators