Generate UPC-A Barcodes Online
Create standard 12-digit Universal Product Code (UPC-A) barcodes for North American retail checkout. Free vector SVG and high-resolution PNG exports with instant Modulo-10 check digit verification.
1. Barcode Data
UPC-AStandard 12-digit barcode for retail point-of-sale checkout in the United States and Canada (GTIN-12). (12 digits (or 11 digits + calculated check digit))
2. Dimensions & Size Presets
Current: 86.4 × 47.5 mm @ 300 DPI
3. Additional Label Text
Add product title, SKU, MRP, or batch info in Manrope font
4. Color & Contrast
High optical contrast between bars and background is essential for reliable scanning
The Standard 12-Digit Barcode for US & Canadian Retail Checkout
UPC-A (Universal Product Code Type A, or GTIN-12) is the quintessential 12-digit barcode standard across North American retail. Found on supermarket shelves from Costco and Walmart to Target and Whole Foods, UPC-A ensures frictionless point-of-sale optical scanning.
Embedro generates production-ready UPC-A vector SVGs, 600 DPI PNGs, and print-ready multi-label PDF sheets with automated Modulo-10 checksum validation, high-contrast quiet zones, and OCR-B human-readable digits.
UPC-A Specifications
- StandardGS1 GTIN-12 / ANSI X3.182
- Total Digits12 Numeric Digits
- Check Digit FormulaGS1 Modulo-10
- Nominal 100% Size37.29 × 25.93 mm
- EAN-13 Equivalent0 + 12 Digits (GTIN-13)
Anatomy of a UPC-A Barcode: The 4 Functional Blocks
Every 12-digit UPC-A code is broken down into structured segments that identify the product category, manufacturer, specific SKU, and verification check digit.
Number System Digit
Categorizes product type: 0, 1, 6, 7, 8 for consumer goods; 2 for weighed meat/produce; 3 for pharmaceuticals; 5 for coupons.
Manufacturer Number
Assigned directly by GS1 US or GS1 Canada. Uniquely identifies your business or brand name worldwide.
Product / Item Code
Assigned by the manufacturer to uniquely designate the exact item, size, color, or formulation.
Modulo-10 Check Digit
Calculated automatically across the preceding 11 digits to ensure 100% optical reading accuracy at retail scanners.
How UPC-A and EAN-13 Work Together Globally
Internationally, UPC-A is a subset of the EAN-13 / GTIN-13 standard. An 11-digit payload with a check digit (e.g. 036000291452) is completely identical to a 13-digit EAN with a leading zero (0036000291452).
US point-of-sale systems and Amazon inventory ingestion systems read 12-digit UPC-A barcodes natively.
If an Excel CSV dropped your leading zero (leaving 11 digits), Embedro automatically detects and repairs it.
Calculating the 12th Check Digit with Modulo-10
Odd-positioned digits are multiplied by 3, even-positioned digits by 1.
Consider the 11-digit payload 03600029145:
• Odd positions (1, 3, 5, 7, 9, 11): (0 + 6 + 0 + 2 + 1 + 5) × 3 = 14 × 3 = 42.
• Even positions (2, 4, 6, 8, 10): (3 + 0 + 0 + 9 + 4) × 1 = 16.
• Total sum = 42 + 16 = 58.
• Nearest multiple of 10 is 60. Check digit = 60 − 58 = 2.
→ Full verified UPC-A barcode: 036000291452.
Frequently Asked Questions: UPC-A Barcodes
Answers to common questions regarding North American retail labeling and Amazon compliance.
Free Forever for Offline Barcodes.
Cloud Sync & APIs for Scaling Teams.
All core 1D & 2D generation, label design, spreadsheet import, and A4/thermal printing are completely free with zero ads and codes that never expire. Upgrade only when you need multi-device cloud catalog sync or automated REST APIs.
Free Forever
For small businesses, retail shops, boutiques, and makers who need reliable, permanent barcode labels without monthly software bills.
No credit card needed • Codes never expire
D2C & Apparel
For growing boutique brands, apparel sellers, and retail stores with multi-variant product collections.
Billed annually at ₹2388/yr
High-Volume
For distribution warehouses, 3PL fulfillment hubs, and supermarket chains requiring automated generation.
Billed annually at ₹5988/yr
How Embedro Barcode Studio Compares to Typical Online Generators
Engineered for retail checkout, Amazon FBA packaging, apparel hangtags, and warehouse intake. See why businesses switch from generic generators to Embedro.
| Operational Feature | Embedro Barcode Studio Print Without Waste • Direct Optical Codes | Typical Online Generators Generic Portals • Sheet Waste & Paywalls |
|---|---|---|
Code Expiration on Physical Packaging Will your product barcodes continue scanning at supermarket checkout lanes and warehouse intake? | Never Expire (Permanent Validity) Direct-encoded optical bars strictly complying with GS1 and ISO standards. Once printed, they remain scannable forever without server dependencies. | Deactivated After Trial or Paywalled Many freemium generators route barcodes through proprietary redirect links, disabling physical packaging unless ongoing monthly fees are paid. |
Print Without Waste (Start from Slot #N) Can you resume printing on partially used A4 sticker sheets without throwing away blank labels? | Included Free (Pick Any Starting Slot) Select your exact starting slot (e.g. Slot #7 on a 24-up sheet) to resume printing on unused labels. Eliminates expensive paper and sticker waste. | Slot #1 Only (Forces Full Sheet Waste) Strictly starts printing from the top-left corner (slot 1), forcing businesses to discard partially peeled sticker sheets. |
Excel & Spreadsheet Auto-Repair How does the software handle Excel scientific notation (8.90123E+12) and missing leading zeroes? | Automated Repair Diff Modal Reads raw integers, detects corrupt CSV scientific notation, restores stripped leading zeroes, and calculates check digits with visible diff confirmation. | Naively Outputs Corrupted Barcodes Blindly encodes Excel exponential notation or truncated numbers into unreadable bars that get rejected by retail cashiers. |
GS1 Modulo-10 Check Digit Validation Automatic verification of mathematical checksums for EAN-13, UPC-A, EAN-8, and ITF-14. | Real-Time Modulo-10 Checksum Engine Calculates and verifies the check digit in real time. Flags mismatches instantly and offers single-click automated correction. | No Validation or Strict Rejection Generates mathematically invalid barcodes without warning, or fails silently, leaving businesses with thousands of unsellable labels. |
Physical 100 mm Scale Calibration Line Built-in measurement tool to prevent printer "Fit to Page" auto-scaling errors. | Included 100.0 mm Calibration Ruler Printable PDF includes a precise 100 mm scale check line so operators can verify with a physical ruler that bar widths are undistorted. | No Printer Calibration Safeguard Lacks scale verification. Desktop printer drivers frequently shrink labels by 3-5%, violating standard quiet zones. |
Live Camera Scanner & Preflight Verifier Testing optical scannability before mass printing thousands of commercial labels. | Built-In In-Browser Camera Decoder Scan your printed sample proofs live using your phone camera or webcam to inspect symbology, check digits, and contrast before printing batches. | Requires Separate Handheld Hardware No verification tool provided. Requires purchasing external handheld scanner guns to test whether printed codes work. |
Product Variant Matrix Multiplier Generating color × size variant combinations (e.g., Red/Blue/Black × S/M/L/XL). | Instant Variant Multiplier Define colors and sizes once to automatically generate all unique SKUs, barcode values, and collision warnings in a clean matrix. | Manual Individual Entry Only Operators must manually type and format each variant one by one, introducing human error and taking hours for multi-size apparel. |
Data Privacy & Catalog Confidentiality Where is your confidential product pricing, SKU catalog, and barcode database stored? | 100% Client-Side In-Browser Privacy All barcode rendering, spreadsheet parsing, and PDF compilation occurs entirely on your device. Zero proprietary product data uploaded. | Stored on Third-Party Cloud Servers Uploads your proprietary SKU list, wholesale cost data, and retail pricing to external third-party databases. |