Business & E-commerce

Bulk Barcode & SKU Generator

Create scannable Code-128, Code-39, EAN-13, UPC and ITF-14 barcodes in bulk with zero-padded sequential SKUs. Free online Bulk Barcode & SKU Generator. Calculat

SKU1001
SKU1002
SKU1003
SKU1004
SKU1005
SKU1006
SKU1007
SKU1008
SKU1009
SKU1010
SKU1011
SKU1012
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Every calculator here runs 100% in your browser — nothing is sent to a server or stored in a database.

§01What is

Understanding the Bulk Barcode & SKU Generator

Bulk-generate sequential SKU codes and their scannable barcodes (Code 128, Code 39, EAN-13, UPC-A, ITF-14) for inventory tags, shipping labels, or retail merchandising — up to 200 at a time.

Every decision in a business eventually reduces to a number — margin, ROAS, payback period, break-even. Getting those numbers fast and accurate is how operators avoid leaving money on the table. The Bulk Barcode & SKU Generator sits in that toolkit — it create scannable Code-128, Code-39, EAN-13, UPC and ITF-14 barcodes in bulk with zero-padded sequential SKUs. Enter your numbers above and the result updates instantly; every step of the math is shown in the Derivation panel so you can see exactly how the answer was reached.

§02The Formula

How it’s calculated

SKU[i] = prefix + pad(start + i, width) + suffix

Where

prefix
Your identifier, e.g. "SKU" or "ACME"
pad
Zero-pad width (e.g. 4 → "0001")
start
Starting sequence number
suffix
Optional batch/year/location tag
§03Practical Example

Step-by-step walkthrough

Scenario

Generate 20 SKUs starting at ACME-1000 padded to 5 digits.

  1. 01Prefix: ACME-
  2. 02Start: 1000, Pad: 5
  3. 03Results: ACME-01000, ACME-01001, … ACME-01019
  4. 04Each SKU renders a matching Code-128 barcode ready to print on 1" × 2" labels.
§04FAQ

Frequently asked questions

UPC-A (12 digits) in the US, EAN-13 (13 digits) everywhere else. Both require a legitimately registered GS1 prefix.
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