Unit Price Comparison Calculator
Compare two products of different sizes and prices to find the true best value per unit.
Calculator Settings
Total Breakdown
All About Unit Price Comparison Calculator
Bigger isn't always better. This tool strips away marketing packaging and calculates the price per gram, ounce, or liter to find the real bargain.
How to Use This Tool
Enter the price and quantity/size of the first product.
Enter the price and quantity/size of the second product.
Ensure both products are using the same unit of measurement (e.g., grams, liters).
Review which product has the lower price per unit and see the exact price difference.
Practical Example
Comparing 500g for $10 vs 1.2kg (1200g) for $22 shows the 500g option is actually slightly cheaper per gram.
Common Questions
Why is unit price important?
It allows you to compare products of different sizes fairly, which is the only way to find the true lowest price.
Should I include shipping for online orders?
Yes. To get the 'Landed Unit Price,' add the shipping cost to the item price before entering it into the calculator.
What if the products have different quality?
This tool measures economic value. You must still use your judgment to decide if a higher-quality product is worth the extra cost per unit.