Millions of people rely on Social Security for their well-being in retirement. But few people understand how their Social Security benefit is actually calculated.

In the following slideshow, Dan Caplinger, The Motley Fool's director of investment planning, goes through the basics of figuring your Social Security benefit, with details on how Social Security takes into account your earnings and converts them to a monthly benefit check based on decisions you make on when to take Social Security.

Your Social Security Benefit in 4 Easy Slides from The Motley Fool.