Find out how the annuity formula works and how to calculate present and future value. Get a simple breakdown of key concepts.

An annuity is a regular flow as opposed to a one-time investment. Hence when there are regular flows where you must calculate the future value, you need to use the future value calculator annuity.

And it can be complicated to calculate how much coverage ... lifetime payouts from the annuity. Coverage would be based on the value of the future income stream in today's dollars.