Hi @Handian Sudianto ,
Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.
I understand that you would like to know the pricing details on Azure VPN Gateway.
Azure VPN gateway is billed hourly for the time uptime, and also for the amount of traffic flow.
The hourly uptime cost is highlighted in this document : VPN Gateway pricing
You can find information about data transfers under the FAQ section.
Data transfers over the VPN connections to your on-premises sites or the internet in general are charged separately at the regular data transfer rate.
Please feel free to let us know if you have additional queries on this.
Thanks,
Kapil
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