The Exchange Server 2019 Capacity Calculator allows you to calculate the hardware and virtual system requirements for the servers handling the Exchange Server Roles within your Exchange 2019 environment.
The latest version of the calculator is included with each Exchange Server 2019 Cumulative Update but also available as a separate download.
The calculator is provided as an Excel document with various macros. For the best experience, it is recommended to use it with Excel as part of Microsoft Office Professional Plus 2019 or Microsoft 365 Apps for Enterprise/Business.
Download: Exchange Server 2019 Capacity Calculator
More info: Announcing The Exchange Server 2019 Sizing Calculator
