How much you need
Start with what you spend in a month today. Raise it by inflation for the years until you retire. That is the first year of retirement spending. The corpus is the smallest amount that can pay that bill, then a higher bill each year, until the age you set. Each year the withdrawal comes out first. What is left earns the post-retirement return.
6% inflation and a 7% return after retirement are the starting points on this page. A 12% return before retirement is the starting point for savings that can sit in shares. All three are planning assumptions. They are not a forecast.
A worked example: age 35, ₹50,000 a month
You are 35. You retire at 60 and plan until 85. Today’s spending is ₹50,000 a month. At 6% inflation, the first year of retirement costs ₹25,75,122, about ₹2,14,594 a month. The corpus that lasts those 25 years, at a 7% return, is ₹5,76,49,822.
With nothing saved, the gap is the whole corpus. A monthly SIP of ₹30,380 at 12% closes it over 25 years. Savings of ₹10,00,000 today grow to ₹1,97,88,466 at that same return. An EPF and NPS figure of ₹20,00,000 is already the amount at retirement, so it is not grown again. Together they cover ₹2,17,88,466, and the gap falls to ₹3,58,61,356. The SIP for that smaller gap is ₹18,898.
EPF, NPS, PPF, and the FIRE calculator
Put the EPF and NPS balance you expect on the retirement date in its own box. Use the EPF calculator and the NPS calculator if you want to build that figure first. A PPF balance you will hold until then can sit in the same box, or in savings today if it still has years to grow. The PPF calculator runs that account on its own rules.
This page is a retire-at-60 plan. The FIRE calculator is for stopping work earlier, and it sizes the corpus with a withdrawal rate rather than the year-by-year bill used here. After retirement, a mutual-fund withdrawal is the SWP calculator. A senior-citizen deposit is the SCSS calculator. More of these tools are on retirement.
This is a plan you can change, not advice. Read the disclaimer.
