In STAAD.Pro Connect Edition, the base units may be changed from within the startup page of STAAD.Pro as shown below

In older versions of STAAD.Pro ( v8i and older ), the base units may be changed as explained next

1. Go to the opening page of STAAD.Pro. In this page, you will only be able to see two options in the top menu bar – “File” and “Help”. Refer to Figure 1.

2. In the “File” menu, click on the “Configure” option. Please refer to Figure 1 below.

                                                         Figure 1

3. On clicking on the “Configure” option, the following is displayed (refer Figure 2). 

4. Click on the “drop-down” switch. The current base unit settings will be shown and highlighted. Click on the required Unit Settings and click on “Apply” and “Accept”. Refer Figure 2.

                                     Figure 2

5. Your Base Unit Settings are changed now.

This change would need to have read/write permissions to the staadpro20070.ini. Please ensure that you have the write permissions to the location where the INI file is located. This is located in C:\ProgramData\Bentley\Engineering\STAAD.Pro V8i SSX.