Henry’s Mama

Grocery Unit Price Calculator

Henry’s Mama · Grocery unit price calculator

Compare Grocery Prices, Side by Side

Same product, different package sizes? Compare the real price per ounce, fluid ounce, or item—using the prices you actually see at the store. No sign-up, no guesswork.

Compare 2–5 offersU.S. & metric unitsMultipacks & couponsMobile-friendly

1. What are you comparing?

Compare similar products. Choose how the amount is measured on the package.

Note: weight oz and liquid fl oz are different. We’ll only compare units that belong together.

2. Add your store options

Enter the total shelf price for each offer, its package size, and how many packages the offer includes. Add an eligible coupon if you have one.

Coupon amount applies to the entire offer. Use the price you would actually pay; taxes, membership costs, and cash-back offers are not added automatically.

Your shopping comparison

Which option is the better value?

Results update as you type.

Add prices and package sizes for at least two options to compare them.

This tool compares amounts and the prices you enter. The lowest unit price is not always the best purchase if you won’t use it all before it expires.

Shop smarter, without doing math in the aisle

What looks cheaper on the shelf may cost more per ounce, per fluid ounce, or per diaper. Dividing each offer’s final price by its total quantity helps you make an apples-to-apples comparison. You can compare a 24-ounce container to a 2-pound bag, or a 90-count box of wipes to a multipack.

How does the calculator find the better deal?

It converts all package amounts into the same unit, subtracts any coupon you enter, then divides the final total price by the total amount. The smallest result is the lowest unit price. Example prices inside the tool are fictional illustrations, not live store prices.

Can I compare diapers or wipes?

Yes. Select By count, type the number of diapers or wipes in each pack, and enter the number of packs included. Compare the same product type and an appropriate size or quality so the result is meaningful.

How do I compare an offer with multiple packages?

Enter the amount in each package, then the number of packages included in the offer. For example, three packs with 28 diapers each contain 84 diapers in total. Enter the price for all three packs combined.

Does a bigger package always save money?

No. A smaller package with a sale or coupon can have a lower unit price. Also consider storage, expiration dates, your family’s actual needs, and the cash you spend at checkout.

Do I need to create an account?

No. Your calculations happen in the browser, and the tool does not send your comparison details to Henry’s Mama.

For more family-friendly planning tools, visit Free Tools for Moms.

Planning your baby’s essentials?

Before buying diapers and wipes in bulk, read my Baby Registry for First-Time Moms: What You Actually Need (and What You Can Skip). I share what I actually used with my son, what I barely needed, and why buying too many newborn diapers isn’t always a good idea.