Calculate the compounded future value of a ₹1,00,00,000 lump sum over 15 years, fully adjusted for inflation.
Quick answer: ₹1,00,00,000 invested today at 12% annual return grows to ₹5,47,35,658 nominally in 15 years. Adjusted for 5.5% annual inflation in India, its real purchasing power is ₹2,45,17,910 in today's money — about 55% less than the headline figure.
Starting from ₹1,00,00,000 and compounding at India's long-horizon equity return assumption of 12%, your investment reaches a nominal value of ₹5.47 Cr after 15 years. After deflating that by 5.5% annual inflation, its real purchasing power in today's money is ₹2.45 Cr — a 55.2% erosion driven entirely by the gap between nominal returns and price increases.
At a 12% return rate, your money doubles roughly every 6 years (Rule of 72). At 5.5% inflation, prices double every 13 years. Your real return — the only return that matters for purchasing power — is 6.5% per year.
| Year | Nominal value | Real value (today's purchasing power) | Purchasing power lost |
|---|---|---|---|
| 2 | ₹1.25 Cr | ₹1.13 Cr | 10.2% |
| 4 | ₹1.57 Cr | ₹1.27 Cr | 19.3% |
| 6 | ₹1.97 Cr | ₹1.43 Cr | 27.5% |
| 8 | ₹2.48 Cr | ₹1.61 Cr | 34.8% |
| 10 | ₹3.11 Cr | ₹1.82 Cr | 41.5% |
| 12 | ₹3.9 Cr | ₹2.05 Cr | 47.4% |
| 14 | ₹4.89 Cr | ₹2.31 Cr | 52.7% |
| 15 | ₹5.47 Cr | ₹2.45 Cr | 55.2% |
The return rate you can actually achieve is the single biggest lever on the final corpus. Three return scenarios:
| Scenario | Return assumption | Nominal in 15 yrs | Real in 15 yrs |
|---|---|---|---|
| Conservative | 9% | ₹3.64 Cr | ₹1.63 Cr |
| Expected | 12% | ₹5.47 Cr | ₹2.45 Cr |
| Optimistic | 15% | ₹8.14 Cr | ₹3.64 Cr |
The future value is calculated using two primary steps:
Where: PV = Present Value (initial amount), r = annual return rate, i = annual inflation rate, and n = duration in years.
Investing $100,000 at an 8% annual return rate for 30 years yields a nominal corpus of $1,006,265. However, at a standard 2.5% inflation rate, its purchasing power today is only $479,729, representing a 52.3% loss in value.
Calculate how the value of money decreases over time and see the future cost of today's goods.
Determine what a future financial goal is actually worth today after accounting for inflation.
Calculate the returns of your Systematic Investment Plan (SIP) and see its real inflation-adjusted value.