Free Online Unit Price Calculator
Compare unit prices to find the best deal
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$0.2772/oz
$0.2704/oz
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About this tool
Compare unit prices across products to find the best deal with this free unit price calculator. Enter the price and quantity for up to four products and instantly see the price per unit for each, with a clear 'Best Value' badge on the cheapest option. The calculator shows how much you save compared to the most expensive alternative. Great for comparing grocery items, bulk vs. single purchases, or different package sizes at the store. Supports common units like ounces, pounds, grams, kilograms, milliliters, liters, and count. All calculations happen in your browser.
How to use Unit Price Calculator
- Enter products. Add product name, price, and quantity for each item you want to compare.
- Select units. Choose the unit of measurement for each product.
- Compare. See unit prices side by side with a Best Value badge on the cheapest option.
Frequently Asked Questions
Unit price is the cost per single unit of measurement (per ounce, per gram, per item, etc.). It lets you compare different package sizes on an equal basis. The lower the unit price, the better the deal.
Divide the total price by the quantity. For example, a 24 oz bottle for $3.60 has a unit price of $3.60 ÷ 24 = $0.15 per ounce.
Usually, but not always. Stores sometimes price medium sizes lower per unit than bulk sizes, especially during sales. Always check the unit price rather than assuming bigger is better.
Many US states require unit pricing on shelf labels to help consumers compare values across different brands and sizes. The format varies — some show price per ounce, others per 100 count.
Only if the units are convertible (e.g., grams vs. kilograms). This calculator compares products using the same unit type. For meaningful comparisons, make sure all items use compatible units.
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