You can use an annuity calculator to figure both the present and future value of an annuity, so long as you know the interest rate, payment amount and duration.

The formula for the present value of an ordinary annuity is below. An ordinary annuity pays interest at the end of a particular period, rather than at the beginning: 4 P = P M T × 1 ...

How To Calculate the Present and Future Value of Annuity Karen Doyle October 24, 2023 at 4:53 PM Highwaystarz-Photography / iStock.com ...

To calculate the present value interest factor of an annuity due, take the calculation of the present value interest factor and multiply it by (1+r), with "r" being the discount rate.