More in the pack. Better value?
THE PACKAGE MATH
Compare what you actually get.
Enter the total price, number of items, and net weight of each item. The starting values are an illustration, not current offers.
For one bag, use 1 item and the bag’s net weight. A twin tray may count as one item or two portions; use the same interpretation for both packages. Price excludes any unentered tax or charges. This compares quantity, not nutritional quality or feeding amounts.
A low package price and a low unit price are different things. Compare the total amount you receive first, then decide whether the format, recipe, storage, and likely use work for your cat.
Give every number a unit
Write down the total price you would pay for the package, its item count, and the net weight of each item. A carton containing twelve 3-ounce cans has 36 ounces of food. A 3-ounce can sold individually has 3 ounces, even if its photographs show several cans.
For a bag, enter one item and the bag’s net weight. For a multipack of bags, enter the number of bags and each bag’s net weight. Use net contents from the package, rather than a shipping weight that includes cardboard or other packaging.
| Package | Total contents | Price | Unit cost |
|---|---|---|---|
| A: 12 cans × 3 oz | 36 oz | $12 | $0.3333 per oz; $1 per can |
| B: 24 cans × 3 oz | 72 oz | $18 | $0.25 per oz; $0.75 per can |
B costs more to buy at once but 25% less per ounce in this example. That is a quantity comparison. It says nothing about the recipes, the amount your cat needs, or whether the larger pack will be used.
A tray, a portion, and a multipack are not the same count
A divided tray may contain two separately sealed portions. If its combined net weight is 2.6 ounces, each equal half would contain 1.3 ounces. Do not multiply the 2.6-ounce weight by two simply because the tray separates into two halves.
Keep the count consistent. Twelve twin trays at 2.6 ounces per tray contain 31.2 ounces total. Alternatively, count 24 portions at 1.3 ounces per portion. Both give the same total weight; the price per item changes because “item” means something different.
Our catalog includes a Sheba Perfect Portions twin-tray listing and an INABA Churu Meal Chowder 12-cup pack. Compare the exact net contents and selling pack on each page. “Churu” alone does not distinguish a meal from a treat, and “six pack” does not tell you whether its units are trays, portions, or cans.
Check the food’s role before comparing the price
The FDA explains that the nutritional adequacy statement identifies whether a food is intended as a complete diet. Treats and supplements generally serve a different purpose. Look for the stated life stage and adequacy statement on the current package, rather than relying on the recipe name.
Price per ounce compares weight, not calories or nutritional quality. Dry and wet foods contain different amounts of moisture, so their prices per ounce are not a feeding-cost comparison. For a medically prescribed diet, use your veterinarian’s instructions when choosing alternatives.
A five-point package check
- Identity: same recipe, texture, and life-stage labeling, or a deliberate change?
- Contents: net weight per container, multiplied by the actual selling count?
- Charges: does the entered price include every charge you want compared? Enter the final amount if it differs from the item price.
- Storage: can you store unopened and opened food as the package instructs?
- Use: will you use the larger quantity before its relevant package dates and storage limits?
The calculator does not estimate daily feeding or recommend an amount. It calculates the quantity and unit cost from the numbers you enter. Your inputs stay in the page; the tool does not send or save them.
FDA: “Complete and Balanced” Pet Food, accessed October 7, 2026. The numerical examples and worksheet are Meowkai’s own package arithmetic. Product listings retain their own review dates.