Shopping toolkit
Unit Price
Compare prices using the same unit so package size cannot hide the better value.
Unit Price CalculatorCompare any product price against its quantity or size. Use it to normalize different package sizes before choosing the better value.Price per Ounce CalculatorCalculate cost per ounce for packaged goods. Use it to normalize different package sizes before choosing the better value.Price per Pound CalculatorCalculate cost per pound for groceries and bulk products. Use it to normalize different package sizes before choosing the better value.Price per Gram CalculatorCalculate cost per gram for food, supplements and other measured goods.Price per Kilogram CalculatorCalculate cost per kilogram for larger packages. Use it to normalize different package sizes before choosing the better value.Price per Liter CalculatorCalculate cost per liter for liquids. Use it to normalize different package sizes before choosing the better value.Price per Milliliter CalculatorCalculate cost per milliliter for smaller liquid packages. Use it to normalize different package sizes before choosing the better value.Price per Fluid Ounce CalculatorCalculate cost per fluid ounce for drinks, cleaners and personal care.Price per Item CalculatorFind the cost of each item in a multipack. Use it to normalize different package sizes before choosing the better value.Price per Count CalculatorCompare packages sold by count. Use it to normalize different package sizes before choosing the better value.Price per Serving CalculatorCalculate cost per stated serving. Use it to normalize different package sizes before choosing the better value.Price per Sheet CalculatorCalculate cost per sheet for paper goods. Use it to normalize different package sizes before choosing the better value.Price per Roll CalculatorCalculate cost per roll for household paper products. Use it to normalize different package sizes before choosing the better value.Price per Capsule CalculatorCalculate cost per capsule. Use it to normalize different package sizes before choosing the better value.Price per Tablet CalculatorCalculate cost per tablet. Use it to normalize different package sizes before choosing the better value.Price per Diaper CalculatorCompare diaper packs by cost per diaper. Use it to normalize different package sizes before choosing the better value.Price per Pod CalculatorCompare detergent, dishwasher and coffee pods by cost per pod. Use it to normalize different package sizes before choosing the better value.Price per Load CalculatorCalculate cost per laundry or dishwasher load. Use it to normalize different package sizes before choosing the better value.Price per Wash CalculatorCalculate product cost per wash. Use it to normalize different package sizes before choosing the better value.Price per Use CalculatorDivide purchase price by expected uses. Use it to normalize different package sizes before choosing the better value.Price per Square Foot CalculatorCalculate cost per square foot for flooring, coverings and materials. Use it to normalize different package sizes before choosing the better value.Price per Square Meter CalculatorCalculate cost per square meter. Use it to normalize different package sizes before choosing the better value.Price per Foot CalculatorCalculate cost per linear foot. Use it to normalize different package sizes before choosing the better value.Price per Meter CalculatorCalculate cost per meter. Use it to normalize different package sizes before choosing the better value.Price per 100 Grams CalculatorNormalize packaged goods to a 100-gram price. Use it to normalize different package sizes before choosing the better value.Price per 100 Milliliters CalculatorNormalize liquids to a 100-mL price. Use it to normalize different package sizes before choosing the better value.Price per 100 Units CalculatorNormalize bulk counts to a 100-unit price. Use it to normalize different package sizes before choosing the better value.Equivalent Quantity Cost CalculatorCalculate what one package would cost at another package quantity. Use it to normalize different package sizes before choosing the better value.
Guides for this shopping decision
Sources and verification
These sources support the consumer-shopping principles discussed on this page. Your own retailer's current offer and policy still control the actual transaction.
NIST SP 1181 — Unit Pricing Guide, 2025 EditionNational Institute of Standards and Technology · verified 2026-08-09Official U.S. best-practice guide for unit pricing; updated May 20, 2026.Uniform Unit Pricing: Tools for Consumers to Fight ShrinkflationNational Institute of Standards and Technology · verified 2026-08-09Official consumer explanation of unit pricing and shrinkflation.