Can I compare packs sold in grams and kilograms?

Yes. Pick g, kg, oz or lb (or ml, L, fl oz) for each product and they are converted, then shown as a price per 100 g or per 100 ml.

How many products can I compare?

Two or more. Add as many rows as you need; the cheapest per unit is marked Best value, and the others show how much more they cost in money and %.

Can I use my own currency?

Yes. Choose from over 40 currencies. The comparison can be shared with a link, and your last 3 comparisons are kept on this device.

Yes. Every tool is free to use, with no account and no credit card. The work runs on your device rather than on our servers, which is what keeps it free to run.

Does it work on mobile?

Yes. It runs in current mobile browsers on iOS and Android, with nothing to install.

🛒

Free Unit Price Calculator

Compare products by price per unit and instantly spot the best value.

Runs in your browserNo sign-up, no pop-upsNo login requiredFree foreverBest-value flagAdd more products

Works offline once loaded

Enter the price and quantity of two or more products and instantly see the price per unit, which one is the best value, and how much more the others cost.

Currency

ProductPriceQuantityUnit

Packs ×Discount

Units are converted automatically (g, kg, oz, lb, ml, L, fl oz). For a multipack such as 6 × 330 ml, put 6 in Packs and 330 as the quantity.

🔒 All figures are calculated in your browser — nothing is uploaded.

Common uses

Grocery ComparisonCompare supermarket pack sizes.
Price per OunceCompare products by the ounce.
Price per 100 gCompare deli and packaged foods.
Bulk vs Small PackIs the big pack really cheaper?
Diapers per UnitCompare diaper boxes by count.
Pet Food per KgCompare pet food bags by weight.

How It Works

Enter the price and quantity of two or more products and instantly see each price per unit, which option is the best value, and how much more (in %) the others cost. The classic supermarket-shelf dilemma, solved in your browser.

1
Add the products
Name, total price and quantity for each (same unit).
2
Compare instantly
Each product's price per unit, side by side.
3
Spot the winner
The cheapest per unit gets a Best Value badge.
4
See the gap
Every other option shows +% versus the best.

All figures are calculated in your browser — nothing is uploaded.

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