# 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.

**URL:** https://convertto.tech/t/unit-price-comparator
**Category:** Calculators (https://convertto.tech/c/calculators)
**Privacy:** Runs entirely in the browser; no upload
**Cost:** Free, no sign-up
**Last updated:** 2026-08-01

## Key facts

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

## How to use

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

## FAQ

### 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.

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