Your Retirement Projection
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About This Calculator
- What it calculates
- Projected retirement corpus at your target retirement age, inflation-adjusted real value, total contributions made, and investment growth. Optionally: retirement readiness check and suggested monthly contribution to meet an income target.
- Inputs required
- Current age, retirement age, current savings, monthly contribution, expected annual return, annual inflation rate. Optional: annual step-up %, desired monthly income in retirement, post-retirement return, life expectancy.
- Formula used
- Month-by-month iterative compounding: Balance = Balance × (1 + r/12) + Monthly Contribution, applied for each month until retirement age. Step-up multiplies the monthly contribution by (1 + stepup/100) each year. Inflation adjustment: Real Value = Corpus ÷ (1 + inflation/100)^years.
- Assumptions
- Fixed investment return throughout accumulation phase. Contributions are made at end of each month. Inflation is assumed constant. Tax on investment returns is not deducted. For NPS or PPF-specific projections, use the dedicated NPS Calculator or PPF Calculator.
- Last updated
How Your Retirement Corpus Is Calculated
This calculator projects your retirement savings through month-by-month compound growth. Each month, interest is earned on the current balance, and your monthly contribution is added. Over 20–35 years, the compounding effect on a growing balance produces results that are several times larger than the total amount you actually contributed — this is the fundamental power behind long-term retirement investing.
The Calculation Process
- Years to retirement = Retirement Age − Current Age
- Monthly growth: Balance = Balance × (1 + annual return ÷ 12 ÷ 100) + monthly contribution
- Step-up: Monthly contribution × (1 + step-up ÷ 100)^year — grows each year
- Inflation-adjusted value = Corpus ÷ (1 + inflation rate)^years — tells you what your corpus is worth in today’s money
Worked Example
Age 30, retirement at 60 (30 years) | Current savings ₹5,00,000 | Monthly contribution ₹10,000 | Return 12% p.a. | Inflation 6% p.a.
- Monthly return rate = 12 ÷ 12 ÷ 100 = 1% per month
- FV of ₹5L initial savings at 1%/month over 360 months ≈ ₹1.80 Cr
- FV of ₹10K/month annuity at 1%/month over 360 months ≈ ₹3.50 Cr
- Total projected corpus ≈ ₹5.30 Cr
- Total contributed = ₹5L + ₹10K × 360 = ₹41 lakh
- Investment growth ≈ ₹4.89 Cr — nearly 12× your total contributions!
- Inflation-adjusted value = ₹5.30 Cr ÷ (1.06)^30 ≈ ₹92 lakh in today’s money
The ₹92 lakh figure is what ₹5.30 Cr will actually be worth in 30 years at 6% inflation. For NPS-linked retirement projections, refer to PFRDA (Pension Fund Regulatory and Development Authority) guidelines.
Why Inflation-Adjustment Is Critical for Retirement
Inflation is the silent wealth eroder. What costs ₹1,00,000 today will cost roughly ₹5,74,000 in 30 years at 6% annual inflation. This means a retirement corpus that looks large in nominal rupees may provide far less purchasing power than expected.
| Nominal Corpus at 60 | Real Value (today’s ₹)* | Monthly Income Supported** |
|---|---|---|
| ₹1 Crore | ~₹17.4 lakh | ~₹8,700/mo |
| ₹3 Crore | ~₹52.2 lakh | ~₹26,000/mo |
| ₹5 Crore | ~₹87.1 lakh | ~₹43,500/mo |
| ₹10 Crore | ~₹1.74 Cr | ~₹87,000/mo |
*Real value assumes 6% inflation over 30 years. **Monthly income assumes 7% post-retirement return for 20 years.
This table illustrates why ₹1 Crore — which sounds like a large number — provides only modest retirement income. Planning without inflation adjustment leads to a retirement shortfall. Always compare your projected corpus in today’s money against your current lifestyle cost, not the nominal figure. See the Savings Calculator to model specific savings goals.
The Power of Annual Step-Up Contributions
Increasing your monthly contribution each year — even by just 5% — has a dramatic impact on the final retirement corpus. This step-up strategy aligns naturally with salary increments: as your income grows, your savings contribution grows too.
| Annual Step-up | Final Monthly Contribution* | Total Contributed | Projected Corpus** |
|---|---|---|---|
| 0% (flat) | ₹10,000/mo | ~₹41 lakh | ~₹5.30 Cr |
| 5%/year | ~₹43,200/mo | ~₹82 lakh | ~₹9.5 Cr |
| 10%/year | ~₹1,74,500/mo | ~₹2.0 Cr | ~₹18 Cr |
*Starting contribution ₹10,000/month, 30 years. **₹5L initial savings, 12% p.a. return.
A 5% step-up nearly doubles the corpus compared to flat contributions, while the total money invested only doubles. The additional return comes from compounding the higher contributions over the remaining years. Use the SIP Calculator to model step-up investments in equity mutual funds, or the Compound Interest Calculator for pure lump-sum projections.
Frequently Asked Questions
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Results are projections based on assumed constant rates of return and inflation. Actual investment returns vary and are not guaranteed. This calculator does not account for taxes on investment gains, market volatility, or unexpected expenses. Consult a SEBI-registered financial advisor for personalised retirement planning.