CID Converter & Link Generator
Paste a Google Maps URL, a CID, or a Fact ID (0x…:0x…) and get every form at once — decimal CID, hex, feature ID, and a clean Maps link. All conversion happens in your browser.
Works with maps?cid= links, /maps/place/ URLs with data, ludocid= search links, or a raw decimal/hex value.
Paste something above to see its CID, Fact ID, and Maps link.
Questions
What is a Google CID?
The CID (Customer ID) is a stable 64-bit number Google assigns to a business listing. It's the number in a maps.google.com/?cid= link and identifies the profile permanently.
How is the Fact ID related to the CID?
In a Maps URL you'll see a pair like 0x…:0x… (the Fact ID). The second half is the CID written in hexadecimal, so converting that hex to decimal gives you the CID.
Why is the CID handled as text, not a number?
CIDs are 64-bit and exceed the safe integer range of spreadsheets and most programming languages, so this tool keeps them as strings to avoid rounding errors.