Retirement Calculator

Step 1 — Your expenses at retirement

Your monthly spending today will cost more by the time you retire. The calculator inflates today's expenses to your retirement date using the inflation rate you enter. This is often the biggest surprise: at 8% inflation, Rs 100,000 a month today becomes roughly Rs 215,900 a month in 10 years.

Step 2 — The corpus you need

The corpus must fund those expenses — which keep rising with inflation — for every year of retirement while the remaining money keeps earning a return. The calculator computes the present value, at your retirement date, of all those future withdrawals (taken at the start of each year).

Corpus = A × (1 − q^L) ÷ (1 − q), q = (1 + inflation) ÷ (1 + post-retirement return), A = first-year expenses, L = years in retirement

Step 3 — The monthly investment required

Your existing savings are grown at the pre-retirement return. Whatever shortfall remains is the amount you need to build through monthly investing; the calculator solves for the monthly figure using the same compounding approach as the SIP calculator. A higher return assumption lowers the monthly amount, but also raises the risk of falling short — be conservative.