About this time value of money calculator
Five numbers describe any loan or investment: periods (N), interest rate (I/Y), present value (PV), payment (PMT) and future value (FV). Know four and the fifth follows. Money you pay out is negative: investing 10,000 now (PV −10,000) plus 200 a month (PMT −200) for 10 years at 6% compounded monthly grows to FV 50,969.84. A 200,000 mortgage (PV +200,000) over 360 months at 6.5% needs PMT −1,264.14; enter that payment and solve for the rate to get 6.5% back.