Guide to retail barcodes

Welcome to your comprehensive guide to retail barcodes. Whether you are launching a new product in Kampala, supplying supermarkets like Carrefour, Shoprite or Game, or exporting to international markets, understanding retail barcodes is essential.

This guide covers:

  • What retail barcodes are and why they matter.

  • The difference between EAN-13 and UPC-A.

  • How to get and format your barcodes correctly.

  • Best practices for printing and placement.

  • Common mistakes to avoid.

EAN-13 vs. UPC-A: Which One Do You Need?

Feature EAN-13 UPC-A
Number of digits 13 12
Primary market Worldwide (outside the USA/Canada) USA and Canada
Uganda usage Recommended for local and regional sales Required if exporting to North America
Scanner compatibility All modern scanners read both formats All modern scanners read both formats

 

Recommendation for Ugandan businesses: If you primarily sell within Uganda or export to other African/European markets, choose EAN-13. If you export to the USA or Canada, choose UPC-A. Many businesses buy both to be safe.

How to Get Your Retail Barcodes

  1. Choose your format – EAN-13 or UPC-A based on your target market.

  2. Select a package – we offer single numbers or bulk packs (10, 100, 1000+).

  3. Provide product details – you will receive your unique number instantly.

  4. Download your images – we provide print-ready formats (PNG, SVG, PDF).

Important: Ensure your barcode seller (like us) provides numbers from a GS1-approved prefix. This guarantees global uniqueness and acceptance.

Barcode Printing & Placement Guide

Size and Magnification

  • Standard magnification: 80% – 200% (X‑dimension 0.26 mm – 0.66 mm) for EAN-13.

  • Minimum: 75% (X‑dimension 0.25 mm) only for thermal/on‑demand printing.

Human-Readable Text

Print the 13-digit (or 12-digit) number directly below the bars. Use a clear, legible font like OCR-B (recommended) or Arial. The text height should be about 2.75 mm at nominal size.

Placement on Packaging

  • Place the barcode on a flat, smooth, and clean surface.

  • Avoid placing it near seems, folds, curves, or edges.

  • Ensure sufficient quiet zone (blank margin) of at least 10x the narrow bar width on all sides.

Colour Contrast

  • Bars: Always print in black.

  • Background: Always white or a very light colour.

  • Never use red, orange, or yellow for bars – scanners cannot read them.

Common Barcode Mistakes to Avoid

Mistake Solution
Quiet zone too small Leave at least 10mm of blank space on all sides.
Low resolution Print at 300 DPI minimum. Use vector formats (SVG/PDF).
Wrong colour (bars not black) Ensure high contrast – black bars on white background.
Cropping the barcode Never crop the barcode – it must be complete.
Placing on curved surfaces Use a flat area; avoid bending the barcode.
Using a low-quality printer Test with a verifier before full production.

Scanning & Verification

Before you print thousands of labels, test your barcode:

  1. Print a sample label.

  2. Scan it with a retail scanner or use a smartphone barcode app.

  3. If it scans correctly, proceed with full production.

For professional assurance, we offer barcode verification services – we test your printed barcode against ISO standards and give you a report.

Frequently Asked Questions

Do I need a barcode for every product variation?
Yes – each different product (size, colour, flavour) needs a unique barcode number.

Can I use the same barcode for online and retail?
Yes – the same EAN-13 or UPC-A works for both physical stores and online marketplaces like Amazon or Jumia.

How long does a barcode last?
Once purchased, your barcode number belongs to you forever. There are no annual renewal fees with us.

Will my barcode work in other countries?
Yes – if you have a genuine EAN-13 or UPC-A, it is globally recognised. One barcode works worldwide.

Everything you need to know about buying and using retail barcodes

To help you get started, we’ve created a downloadable Guide to Retail Barcodes that explains:

  1. The types of retail barcodes (EAN, UPC, ITF14, ISBN, ISSN)
  2. how to buy barcodes
  3. Adding the barcodes to your products
  4. Registering your barcodes and products with retailers and online databases

Download the Guide to Retail Barcodes (PDF).