How do I get my PIA Primary Insurance Amount?

What does PIA stand for?

"PIA," also referred to as your Work History Benefit, stands for Primary Insurance Amount. This is the benefit most people are familiar with – the monthly checks you will receive for the rest of your life from Social Security at your Full Retirement Age. The size of your PIA is determined by the number of years you worked, the amount of money you made, and the amount of Social Security taxes you paid over your entire career, which are usually called payroll taxes or FICA.
You can create a free account on the Social Security Administration’s website here and they will provide you with your PIA.