Yeah, especially if its an pretentious calculator (hahahaha)! Scientific calculators are the main ones that are used in SAT exams. If yours has a keyboard, needs to be plugged in, takes pictures, forget it.

Depends on your area and proctor, though. Back then, they didn't check my calculator at all. She mentioned it while reading some rules on SAT exams but didn't bother implementing it. Chances are that they wouldn't be checking it. Good luck.

I'm a big fan of free test sites. Here's a list of Free SAT Tests.