حاسبة التقاعد

مبادئ الحساب والصيغة الرياضية

Required Retirement Savings = Annual Retirement Income × [1 - (1 + r)^(-n)] / r
where:
r = Real post-retirement return rate (adjusted for inflation)
n = Years in retirement

Projected Retirement Savings = Current Savings × (1 + r)^t + Monthly Savings × [(1 + r/12)^(12t) - 1] / (r/12)
where:
r = Real investment return rate (adjusted for inflation)
t = Years until retirement