Free Unit Price Comparator

Compare Prices Per Unit to Find the Better Deal

This tool calculates the price-per-unit for each product you enter — dividing total price by quantity — and ranks them so you can instantly see which option offers the best value, regardless of package size.

Why Unit Price Matters More Than Total Price

Products are frequently sold in different package sizes, which makes comparing raw prices misleading. A 1kg bag at $2.50 and a 500g bag at $1.50 have very different total prices, but calculating the unit price reveals the 1kg bag actually costs less per gram ($0.0025/g vs $0.003/g) — making it the better deal despite the higher upfront cost. This kind of comparison is exactly what unit pricing labels on grocery store shelves are designed to help with, and this tool does the same calculation for any products you enter.

How to Use This Tool

1. Enter each product's name (optional, for your own reference), total price, and quantity.
2. Add as many products as you want to compare using the Add Product button.
3. Click Compare Prices to see each product's unit price, ranked from cheapest to most expensive per unit.

Common Uses

• Grocery shopping — comparing different package sizes or brands of the same product.
• Bulk buying decisions — checking whether a larger "bulk" size genuinely offers savings per unit.
• Subscription or service comparisons — comparing cost-per-month across different subscription tiers or durations.
• Business purchasing — evaluating supplier quotes with different quantities and prices.

Privacy and Local Processing

All calculations run directly in your browser — no product or price details are sent to a server.