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Retirement Calculator

Two numbers decide your retirement: the corpus you need on your last working day, and the monthly investment that builds it. Enter your age, expenses and assumptions — get both, inflation-adjusted.

Quick answer

A retirement calculator estimates the corpus you need and whether you're on track. It grows current savings and future contributions at an expected return, then checks them against inflation-adjusted retirement expenses. Enter your age, savings, monthly investment and expected return to see the projected corpus and any gap.

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What is the Retirement?

Retirement planning answers a hard question with two simple numbers: how big a corpus must exist on the day income stops, and what monthly investment gets you there. The trap is inflation — ₹50,000 of expenses today becomes ₹2.87 lakh/month at age 60 for a 30-year-old at 6% inflation. Plans made in today’s rupees fail quietly.

This calculator inflates your expenses to retirement age, sizes a corpus that can pay those expenses (rising with inflation) until age 85 while earning a conservative 8% post-retirement, and then computes the SIP that compounds into that corpus by your chosen date.

Formula & worked example

Three steps:

1) Expenses at retirement = E × (1+inf)years
2) Corpus = AnnualExp × (1 − (1+real)−m) / real , real = (1+8%)/(1+inf) − 1
3) SIP = Corpus × i / (((1+i)N − 1) × (1+i))

Worked example: age 30, retiring at 60, ₹50,000/month today, 6% inflation, 12% returns → expenses at 60 ≈ ₹2.87L/month; corpus needed ≈ ₹6.82 crore; required SIP ≈ ₹19,316/month. Delay the start to 40 and the SIP nearly triples — the cost of a decade is brutal.

How to use this retirement calculator

  1. Enter your age, target retirement age and honest monthly expenses today.
  2. Keep 6% inflation unless your lifestyle is education/health-heavy (use 7–8%).
  3. Set the pre-retirement return: 12% for equity-heavy SIPs, 10% for balanced, 8–9% for conservative mixes.
  4. Compare the required SIP with what you invest today (EPF counts!) — the gap is your action item.

Smart tips

Frequently asked questions

How much money do I need to retire in India?

A robust shortcut is 30–35× your expected annual expenses at retirement (inflated, not today’s). For ₹50k/month today and retirement in 30 years, that lands near ₹6–7 crore. The calculator does the precise version with your own assumptions.

What is the 4% rule and does it work in India?

The 4% rule says withdraw 4% of the corpus in year one, growing with inflation — historically safe for 30-year US retirements. With Indian inflation, planners often use 3–3.5%, equivalent to a 30–33× corpus. Our model instead simulates paying inflated expenses until 85 at an 8% return, which is a similar level of conservatism.

Which return assumptions are realistic?

Pre-retirement: 11–12% for diversified equity SIPs over decades, 9–10% blended. Post-retirement: 7–8% from a debt-tilted mix. Inflation: 6%. Aggressive assumptions produce beautiful spreadsheets and broke retirees.

Is EPF/NPS enough for retirement?

Usually not alone. EPF (~8.25%) builds a solid base but rarely reaches a 30×-expenses corpus by itself, and NPS annuitisation limits flexibility. Treat EPF+NPS as the debt portion and add equity SIPs for growth.

What if I start at 40 or 45?

The math is honest: at 40 you need roughly 2.5–3× the monthly SIP a 30-year-old needs for the same corpus. Levers that still work: higher savings rate, retiring 3–5 years later, part-time income after 60, and cutting the target lifestyle.

Want the theory behind the numbers? Read our long-term investing guides on the Money Blog.

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