UPC codes are typically found on the back or bottom of a product’s packaging, just beneath the barcode. You might also spot them on receipts, shipping labels, or directly on products like contact lenses, electronics, or grocery items. However, some UPCs are harder to find, tucked away in less obvious spots.
Let’s walk you through where to look for UPC codes, whether on product packaging, receipts, or even inside product boxes. We’ll also share tips on locating harder-to-find UPCs, how to scan them, and how they compare to other identifiers like barcodes, SKUs, and product numbers.
Let’s help you locate UPCs with ease, whether you're shopping or managing inventory.
What Is a UPC Code
A UPC, or Universal Product Code, is most often a 12-digit number (UPC-A), but a compressed 6-digit version called UPC-E is also used on very small packages. You’ll usually find it printed below a barcode on the packaging. This code helps stores and suppliers keep track of items, manage inventory, and speed up checkout.
The first digit indicates the number system (for example, 0 for most packaged goods, 2 for variable-weighted items), and the subsequent digits form the GS1 company prefix that identifies the brand owner. The next part identifies the exact item. The last digit is a check number to make sure the code scans correctly. The barcode itself is just a machine-readable version of this number.
If you’ve ever wondered how a cashier can ring something up in seconds, it’s thanks to the UPC. The scanner reads the barcode, and the system knows exactly what product it is—even its price.
All of this is part of a global standard system managed by GS1. That means every UPC is unique and recognized across supply chains, both online and in stores. Whether you’re buying a snack, contact lenses, or electronics, the UPC is how the system knows exactly what you’re getting.
So, where exactly should you look for the UPC? One of the most reliable places to start is the product’s packaging.
On Product Packaging

The most common place to find a UPC code is on the product packaging itself. For boxes, bottles, or containers, check the back or one of the side panels. The UPC code is printed where it can easily be scanned, but it won’t block the product’s design. If the product comes in shrink wrap or a sleeve, look for a label or sticker attached to the outside with the UPC.
Beneath the Barcode

Right under the barcode itself is the 12-digit UPC number. This is the number that scanners use to identify the product at checkout. Even if the barcode gets a little worn or smudged, you can still look at the number beneath it to find the product. If you need to search for the product online, this number is usually what you’ll need.
On the Bottom or Sides of the Product

For products that don’t have packaging, like bottles, jars, or oddly shaped items, the UPC might be printed on the bottom or one of the narrow sides. This placement keeps the code accessible without interfering with the branding. Be sure to rotate the product fully when checking for the UPC, especially if it doesn’t come in a box.
On Labels or Stickers

Sometimes, the UPC code is found on a separate label or sticker instead of directly on the packaging. This happens often with bulk items, repackaged products, or store-branded items. You might find the sticker on the top, side, or covering another part of the packaging. Stores may add these stickers after shipping, especially for products without original retail packaging. If you can’t find the UPC directly, check for any additional labels.
Inside Electronic Packaging or Manuals

For electronics or expensive items, the UPC is normally printed on the outside of the retail box for scanning at checkout; paperwork inside the box usually contains serial or model numbers. Manufacturers often do this to keep the exterior packaging clean, especially for premium items. If the UPC isn’t on the outside, check inside the box for any documentation or small stickers.
These are the main spots where you’ll typically find the UPC code. Make sure to check all the possible areas to ensure you don’t miss it.
Where to Find UPC Codes on Special Products
UPC code locations can vary depending on the product. Here's where to look for some common items:
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Silk Almond Milk: Often printed on the side panel or near the bottom, close to the nutrition label.
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Ice Shaker Bottles: Look on a sticker underneath the base or on hang tags. If packaged, check the box instead.
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Contact Lenses: Usually placed on the outer flap of the box or under a label. If you're searching “UPC on contact box,” this is what it means.
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iPhones and Electronics: Not on the device—check the box near the serial number or barcode.
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Retail Receipts: May include the UPC below the item name or beside the price.
- Boxes in General: Flip it over or check the sides—most include the UPC near a barcode or product ID.
When checking these items, focus on flat, printed areas or labeled stickers. Even if not clearly marked, a 12-digit number near a barcode is usually your UPC.
Tips for Locating the UPC
Sometimes the UPC isn’t obvious at first glance. If you're having trouble, here are a few simple tricks that can help:
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Flatten the packaging: A crumpled or folded box might hide the barcode. Gently flatten it to check all visible areas.
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Rotate the product: Don’t just check the front or back—turn the item slowly and look along seams, flaps, or tucked edges.
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Check under price stickers: Retailers sometimes place price tags over barcodes. If you see a sticker, carefully peel it back.
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Use a flashlight: Poor lighting can make the barcode hard to see. A flashlight or your phone light can make the code stand out.
- Compare similar products: If you're holding a multipack or bundle, check one of the individual items for a visible UPC.
These small steps can often save you time and help you find the UPC faster, especially when it’s hidden in plain sight.
UPC Code vs Other Product Identifiers: What’s the Difference?
When you shop for products, you might notice various codes and barcodes on the packaging. It can be confusing to distinguish between a UPC code, barcode, product number, SKU, and other identifiers. Understanding these differences can help you better navigate product packaging, receipts, and more.
UPC Code vs Barcode

The UPC code and barcode are closely related but not the same. A UPC code is a 12-digit number used to identify products, while a barcode is the graphical representation of this code. The barcode consists of black bars and white spaces, which a scanner reads to identify the product. In other words, the UPC code is the specific number, and the barcode is the image you see that encodes that number for scanning.
UPC Code vs SKU
Moving on to the difference between a UPC code and an SKU (Stock Keeping Unit). An SKU is a unique identifier created by retailers to track inventory and manage stock. While the UPC code is universally used, the SKU is retailer-specific, meaning each store may assign its own SKU to the same product. SKUs often contain more details like color, size, and model, which help retailers distinguish between variations of the same product.
UPC Code vs Product Number
Another common identifier is the product number, which is often assigned by the manufacturer. Product numbers help manufacturers track items within their catalog. These numbers are typically used internally, unlike UPC codes, which are globally recognized. While UPC codes are used universally for product tracking, product numbers are specific to the manufacturer’s system.
UPC Code vs Product Code
Similarly, a product code is an identifier that varies depending on the system used by the manufacturer or retailer. It’s often used to represent a specific product in a catalog or inventory system but doesn’t follow the global standard that the UPC code does. While the UPC code serves as a universal identifier, product codes are more specific to companies and industries.
UPC Code vs QR Code
The QR code is another type of identifier, but it’s quite different from the UPC code. A QR code is a two-dimensional barcode that can hold much more data than a traditional one-dimensional barcode. QR codes are commonly used for marketing, allowing consumers to scan the code with their smartphones to access websites or digital content. In contrast, UPC codes are designed for retail and logistics to track products, not for providing additional information like QR codes.

UPC Code vs GTIN
Finally, a GTIN (Global Trade Item Number) is a broader system of product identifiers, which includes UPC codes, EAN codes, and others. While UPC codes originated in North America, they are now accepted and scannable worldwide; GTIN is the umbrella numbering system that also includes formats such as EAN-13 and GTIN-14. The UPC code is actually a type of GTIN, specifically a GTIN-12, while other regions may use GTIN-13 or GTIN-14 for different types of products.
Does Every Product Have a UPC Code?
Not every product has a UPC code, although most items in retail stores or online do. UPC codes are primarily used for tracking inventory, pricing, and sales. However, smaller items like handmade goods or custom products, especially those sold in limited quantities or directly from the maker, might not have a UPC code. In these cases, alternatives like SKU numbers or product codes are often used. Additionally, some digital products or services may not require a UPC code. While UPC codes are prevalent in North America, product identification in other countries frequently utilizes other globally recognized GS1 GTIN formats, such as EAN codes. Always check the product packaging or online listing to confirm if it has a UPC code.
Where to Buy a UPC Code
If you need a UPC, the best place to get it is from GS1, the global organization that manages the UPC system. To purchase a UPC, visit the GS1 website, register your business, and provide product details. GS1 will issue a block of UPCs based on your needs. This ensures that your UPCs are legitimate and compatible with retail systems. GS1 also offers smaller code packages for businesses with fewer products. After purchasing, you can apply these UPCs to your product packaging or online listings. Each UPC is unique to your product, so assign the correct code.

Wrapping Up: Mastering UPC Codes and Scanning Solutions
Now that you understand where to find UPC codes and how they differ from other product identifiers, you're well-equipped to manage inventory more efficiently, speed up the checkout process, and better navigate the retail world. Whether you're shopping or working in logistics, understanding these codes gives you a competitive edge.
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