Retirement Planning — explained
The Retirement Planning Calculator is the most important financial tool a salaried Indian will use in their lifetime. It helps you estimate the retirement corpus you'll need to maintain your current lifestyle and the monthly SIP required today to build that corpus. The calculator accounts for inflation — so today's ₹50,000 monthly expense becomes far larger after 25–30 years — expected post-retirement investment returns, and your years remaining until retirement.
Whether you're starting retirement planning in your 20s or 30s, recalibrating in your 40s, or playing catch-up in your 50s, this free Indian retirement calculator gives you a clear, inflation-adjusted picture of what you need to invest each month. The earlier you start, the smaller the monthly SIP — a 30-year-old needs ~₹15,000/month for a ₹5 crore corpus, while a 40-year-old needs ~₹50,000/month for the same goal. Backed by AMFI Registered MFD Nithin Finserv, ARN: 307760.
What is the Retirement Planning?
Retirement planning is the process of estimating how much money you'll need to fund your lifestyle after you stop earning, and structuring a monthly investment plan to build that corpus during your working years. It accounts for inflation (which erodes purchasing power), longevity (Indians today live 75+ years on average), post-retirement asset returns, and existing retirement assets like EPF, NPS, PPF, and gratuity. Good retirement planning is the single most consequential financial decision most people make.
Step 1: Future monthly expense = Today's expense × (1 + inflation)^years_to_retire. Step 2: Corpus needed at retirement = Future monthly expense × 12 / post-retirement return rate (this assumes you live off the returns without depleting the corpus). Step 3: Required monthly SIP = Corpus × r / [(1 + r)^n − 1], where r is the monthly working-years return and n is the months until retirement.
How to use this calculator
- 1Enter your current age and planned retirement age
- 2Enter your current monthly household expenses in today's rupees
- 3Set the expected inflation rate — 6% is the long-term India CPI average; use 7% to be conservative
- 4Set the post-retirement return rate — 7% is conservative for a debt-heavy retiree portfolio
- 5Read the retirement corpus needed and the monthly SIP required today
- 6Adjust assumptions to test 'what-if' scenarios — earlier retirement, higher lifestyle, etc.
Key features
- ✓Two-stage modelling: accumulation phase + post-retirement withdrawal phase
- ✓Inflation-adjusted future expense calculation
- ✓Shows both corpus needed and monthly SIP required today
- ✓Works for any age, retirement age, and lifestyle level
- ✓Mobile-friendly, no signup