GET BACK APPLE CALCULATOR

If you really are on Big Sur (11.n), then the calculator widget was dropped by Apple. You can send feedback directly to the macOS product team requesting its return to future updates of Big Sur, but not for Catalina.

If you are on Catalina, then Apple dropped Dashboard altogether and there are no Dashboard widgets either. There might be a Calculator that you can enable from System Preferences > Extensions (again, on Catalina only).

norma d wrote:

MY APPLE CALCULATOR WON'T WORK: HOW DO I GET IT BACK?

You can always pull it up the from Spotlight search (Command Spacebar) "Calculator.app"

Which is it, that it doesn't work or it is gone? Is this on your iMac?