# Coin Info

![](https://323189973-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LkDu_ghvfZNGQ3xhN8v%2F-LlXrqxV8oakeHz3HDvN%2F-LlXru1-H8_PwuPuG4Ql%2Fimage.png?alt=media\&token=a0a0b879-16fb-4c11-bd09-ce1da7217a26)

## **Bitgrin mainnet launched the 8th of February 2019**

Ticker: XBG

Block time: \~60s

Block reward: 4.5 XBG

Block reward reducing by half every 4 years - 4.5 cooins and then 2.25 and then 1.125

Next Halvening: Block 2,102,400

Supply: 21,000,000

Coin Calculator : 

{% embed url="<https://bitgrin.dev/calculator/>" %}

\--> <https://jsfiddle.net/01mfvnyp/> - Fill both C29 & C31 even if it is 0 gps

How to Calculate GPS for BitGrin and Grin :

[https://bitgrin.dev/how-to-calculate-gps-for-bitgrin-and-grin/](https://bitgrin.io/how-to-calculate-gps-for-bitgrin-and-grin/)


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