# OpenStax_CNX

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# Annuities

Module by: Rudy Lopes. E-mail the author

Summary: An annuity is defined as a stream of payments made over time. An annuity is typically an investment in which one party puts money in with the promise of the other paying it back. There are several categories of annuities, each describes in these tutorials.

Annuities - Present Value and Future Value -- Annuities are defined as a stream of payments made over time. Use this tutorial to learn how to solve present and future value of annuity problems with financial calculators or spreadsheet functions.

Calculating Future Value -- Future value is a term given to the amount of money we would have at some point in the future, based on what happens between now and then. Use this tutorial to learn how to calculate the future value of an annuity given the present value, periodic interest rate, and number of periods.

Future Value of an Annuity Due -- Calculate the Future Value of an Annuity Due with a step by step example using your values for the periodic interest rate, number of periods, and periodic payment amount.

Calculate Annuity Payment – Funding an Annuity -- Calculate the payment required for an ordinary annuity with a step by step example using your values for the periodic interest rate, number of periods, and future value.

Future Value of an Ordinary Annuity -- Calculate the Future Value of an Ordinary Annuity with a step by step example using your values for the periodic interest rate, number of periods, and periodic payment amount.

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