Easy Annuity Calculator
WARNING: in order to find i, you must divide the interest rate by the number of times/year.
WARNING: in order to find n, you must multiply the number of years by the number of payments/year
Use the Present Value formulas when you know (or want) the value at the beginning.
Use the Future Value formula for when you want to know the value at the end of the deposits.
Present Value (Find PV)
When looking for the Present Value, and payments are given (Example: You want to receive $1000 each year,
how much do you need to set aside?)
Present Value (Find P)
When looking for the Payments, and present value is given (example: a loan for $5000, what is the payment?)
Future Value
When investing a fixed amount each period, and looking for the value after n periods