Finding the future value of an annuity Investment per month: Interest rate: # of times compounded each year: # of times compounded each year is the number of times your interest gained is added to your balance each year. # of years: answer:   Finding the investment per month needed in an annuity to reach a desired future value Desired future value: Interest rate: # of times compounded each year: # of times compounded each year is the number of times your interest gained is added to your balance each year. # of years: answer:   Finding the # of years it will take to reach a desired future value in an annuity Desired future value: Investment per month: Interest rate: # of times compounded each year: # of times compounded each year is the number of times your interest gained is added to your balance each year. answer:   Note: The accuracy of this calculator and its applicability to your circumstances is not guaranteed; these calculators provide only estimates. You should obtain personal advice from any of NBO's service centers.