Retirement Corpus Calculator

Retirement planning in rupees is mostly a fight with inflation. If you need ₹50,000 a month in today’s money for 25 years and prices rise 6% a year, a simple growing-annuity sketch asks for about ₹3.29 crore as a starting corpus. That is a planning mountain, not a pension product, and not NPS (which has its own page).

The cash-flow question

A 45-year-old in Jaipur and a 55-year-old in Kochi both under-save because they multiply ₹50,000 × 12 × 25 and stop at ₹1.5 crore. Inflation makes later years more expensive in nominal rupees. IndiaKit’s growing-annuity (ordinary annuity of rising annual expenses) shows why the mountain is taller.

The maths on this page

Annual expense today = monthly × 12 = ₹6,00,000. Corpus = annual × [((1+i)^n − 1) / i] with i = 6% and n = 25, about ₹3,29,18,707. This assumes expenses grow with inflation and the corpus is drawn down with no separate investment return in the formula — a conservative teaching model.

A full planner would also model returns on the remaining corpus (4% withdrawal rules, equity glide paths). That would usually lower the required starting pile if returns beat inflation. This page does not hide a return assumption; it is an inflation-scaled spend sum.

EPFO, PPF, NPS and real estate are sources, not this equation. Medical inflation in India has often run hotter than 6%; you can type 8% to stress the plan.

₹50,000 a month, 25 years, 6% inflation, Jaipur

The Sharma household in Jaipur wants ₹50,000 a month in today’s rupees for 25 years of retirement. At 6% inflation the sketch asks for about ₹3.29 crore. They then open the NPS and PPF tools to see how today’s contributions could climb toward that ridge line.

What a bank still has to confirm

No investment return inside the corpus, no tax on withdrawals, no healthcare shock. Indicative. Not a SEBI-registered investment plan.

Common questions

Why is this larger than 50,000 × 12 × 25?

Because each year’s spend is inflated. Year 25 in nominal rupees is much larger than year 1. The annuity formula adds those growing years.

Where is expected return on the corpus?

Omitted on purpose so the page does not pretend to be a full FIRE simulator. If you assume 7% returns after inflation, you need a different equation.

Should I include family pension from EPS?

Treat known pensions as reducing the ₹50,000 need, then rerun. Do not double-count NPS annuity here; use the NPS tool for that corpus.