How can I check my framerate in Microsoft Flight Simulator?

Solution 1:

You can switch on FPS display in developer settings (Options -> General -> Developers -> enable Developer mode -> new menu bar appears -> Options -> Display FPS). However, its a rather huge overlay and probably not what you want.

Solution 2:

You also have the option of using the Steam overlay (if that's where you bought it), some third party software such as FRAPS, or the overlay that comes from your GPU software (GeForce Experience or Radeon Overlay), as others have mentioned.

Solution 3:

If you're playing on Steam, then as per this link, enabling the FPS option in steam before the game is opened worked for me:

Valve recently added an FPS counter to Steam’s in-game overlay. In Steam (while no games are running), just head to Steam > Settings > In-Game and then pick a position for the FPS display from the “In-game FPS counter” dropdown.