sGLN → GLN Decoder

Convert a GS1 sGLN EPC URI into a 13-digit GLN with check digit.

What is an sGLN?

An sGLN (Serialised Global Location Number) is a GS1 EPC URI that identifies a physical location or asset:

urn:epc:id:sgln:<CompanyPrefix>.<LocationReference>.<Extension>

Standard: urn:epc:id:sgln:0300771.021692.0 — CompanyPrefix (7) + LocationRef (5) = 12-digit base

Single-license: 120018043386..0 — CompanyPrefix alone is all 12 digits (double dot = empty LocationRef)

Paste a full urn:epc:id:sgln:… URI, or just a 12-digit numeric GLN base.