Formula Used
Future value = P(1 + r/n)^(nt) + PMT × [((1 + r/n)^(nt) − 1) ÷ (r/n)]
The exact terms used depend on the contribution and compounding frequency selected.
How the formula is applied
The estimate uses the starting balance, contribution or withdrawal schedule, time horizon and assumed rate entered. Compounding frequency, contribution timing, inflation, fees, taxes and employer or program rules affect how closely the estimate resembles a real account.