Unit Price Comparison Calculator
Compare up to four products by price per kg, litre or piece. Results update as you type.
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Results
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About the Unit Price Comparison Calculator
Compare up to four products by what they really cost per kilogram, per litre or per piece, so a bigger pack that looks pricier can be recognised as the better deal. Each product can use its own unit: grams, kilograms, ounces, pounds, millilitres, litres, fluid ounces or pieces.
The calculator ranks the options from cheapest to most expensive and tells you how much cheaper the best one is.
Choose your currency (₹, $, €, £ and more) and every amount updates. The calculation runs in your browser, so the numbers you enter are not uploaded.
Unit Price Comparison Calculator example
Product A price: 120
Product A quantity: 500
Product A unit: g
Product B price: 210
Product B quantity: 1
Product B unit: kg
Product C price: 95
Product C quantity: 250
Product C unit: gBest value: Product B: 44.7%
✓ Product B: ₹210.00 / kg
Product A: ₹240.00 / kg
Product C: ₹380.00 / kgHow it is calculated
The price is divided by the quantity after converting to a common base (grams, millilitres or pieces), then scaled to a kilogram, litre or single piece. Products must use the same kind of unit.
Unit price = price ÷ quantity (converted to kg, litres or pieces)Saving = (highest unit price − lowest unit price) ÷ highest unit priceEnter the total quantity of the pack: 6 × 250 ml = 1500 ml
How to use the Unit Price Comparison Calculator
- Fill in the fields above. Required fields are marked, optional ones can be left blank and fall back to the defaults described on this page.
- Use “Try an example” to see a worked case, then replace the numbers with your own.
- Read the results as you type. The large card is the main answer and the smaller cards are the related figures.
- Copy a single value or everything, or share a link that keeps your inputs.
Unit Price Comparison Calculator FAQ
How does the unit price comparison calculator work?
The price is divided by the quantity after converting to a common base (grams, millilitres or pieces), then scaled to a kilogram, litre or single piece. Products must use the same kind of unit.
How do I enter a multipack?
Enter the total quantity. A pack of 6 cans of 330 ml is 1980 ml.
Is the cheapest per unit always the best choice?
Not always. A larger pack only saves money if you will use it before it spoils, and quality, brand and storage space also matter.
Is this unit price comparison calculator free and private?
Yes. It is free with no sign-up, and the calculation happens on your device, so your numbers are never sent to a server.
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