Inflation Converter
Inflation ↔ Future Value Converter
Convert an amount of money across time at a given inflation rate. Enter what something costs today to see what it will cost later, or enter a future sum to see what it is actually worth in today’s purchasing power.
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Year-by-year table
| Year | Inflation factor | Cumulative inflation | Nominal amount (₹) | Worth in today’s money (₹) |
|---|
What This Converter Answers
Straight answer: at 6% inflation, ₹1,00,000 of spending today costs ₹3,20,714 in twenty years, and ₹1,00,000 received in twenty years is worth only ₹31,180 in today’s money. The converter runs that arithmetic in both directions for any amount, any rate and any horizon.
Two different questions live inside one formula. Ask it forwards and you get the goal-escalation answer: how large a number you must actually target for a fee, a wedding or a retirement corpus you have only priced in today’s rupees. Ask it backwards and you get the purchasing-power answer: what a maturity value, a pension or a promised bonus is really worth once you strip out the price rises that happen before it arrives.
Formula and Method
Three conventions are worth stating plainly, because different tools quietly choose differently.
- Compounding is annual. Price indices are published monthly but inflation is quoted and planned annually, so the factor compounds once a year. A fractional year is handled by raising the factor to a fractional power, not by pro-rating linearly.
- The rate is constant. Real inflation is not. A single assumption is a planning device, not a forecast, which is why the year-by-year table is there — it shows you where the assumption is doing the heavy lifting.
- Nothing here is a return. The converter never assumes your money is invested. It moves a fixed sum across time at the inflation rate alone. If you want to know whether an investment beat inflation, that is a different question — see the section below.
Rounding: amounts are rounded to the nearest rupee for display and abbreviated in lakh and crore above ₹1,00,000; the underlying arithmetic is unrounded. Percentages show two decimals, the inflation factor four.
Worked Example — A College Fee
A four-year degree costs ₹12,00,000 today. Your child starts in fourteen years. Education inflation runs well above headline CPI, so use 9%.
The number you must actually plan for is a little over ₹40.1 lakh, not ₹12 lakh. Run it backwards to see the same fact from the other side: the ₹12,00,000 you have earmarked will, in fourteen years, buy what ₹3,59,096 buys today — a shortfall of roughly seventy per cent of the goal, created by nothing but the passage of time.
Which Inflation Rate Should You Use
The headline Consumer Price Index number is an average across a national basket. Your own inflation rate is whatever your actual spending does, and the two can diverge sharply.
- Headline CPI — the published all-India figure, 4.45% for July 2026. Reasonable for a general “what will money be worth” question.
- 4% — the midpoint of the RBI’s mandated target band of 2% to 6%. Defensible for very long horizons on the argument that policy is aimed at it.
- 6% — the conventional planning assumption in Indian financial planning, and the top of the tolerance band. Conservative without being alarmist.
- 8% to 10% — education and healthcare, which have persistently outrun the general index. Use these for school and college fees, and for medical corpus planning.
When in doubt, run the calculation twice and look at the gap. If the plan survives the higher rate, the assumption was not load-bearing. If it does not, you have found the real risk in the plan.
How This Differs From the Real Return Calculator
These two tools are deliberately separate and answer different questions.
This converter moves a single fixed sum across time using inflation alone. There is no investment in it. It answers “how much will this cost” and “what is that worth today”.
The real return calculator takes an investment return and an inflation rate and tells you what is left after inflation has taken its share — the Fisher relation, real return = (1 + nominal) ÷ (1 + inflation) − 1. It answers “did this investment actually make me richer”.
Used together: this converter tells you how big the target really is, and the real return calculator tells you whether the vehicle you have chosen can get there. The goal planning calculator then sizes the monthly contribution.
Where This Bites
- Retirement corpus. A corpus sized in today’s expenses is the single most common planning error. Escalate the annual expense first, then size the corpus.
- Child education and marriage. Long horizons and above-average sector inflation compound into very large gaps.
- Endowment and traditional insurance maturities. A “guaranteed ₹25 lakh in 2046” is a nominal promise. Convert it back to today’s money before deciding whether it is a good deal.
- Fixed pensions and annuities. A level annuity loses roughly half its purchasing power in twelve years at 6% inflation.
- Salary negotiation. A raise below your personal inflation rate is a pay cut expressed politely.
- Fixed deposits. A 7% deposit taxed at slab and running against 6% inflation can deliver a negative real return — the balance rises while the purchasing power falls.
Frequently Asked Questions
The arithmetic is identical, but the rate means something different. A present value calculator discounts at your required rate of return or cost of capital, which reflects opportunity cost and risk. This converter discounts at the inflation rate only, which measures purchasing power. Using one where the other belongs is a common and expensive mix-up.
Because inflation is quoted, targeted and planned as an annual rate. Compounding the same headline number monthly would silently inflate it: 6% compounded monthly is 6.17% effective, so every long-horizon answer would drift high. If you want to see that effect on an interest rate, the nominal to effective rate converter handles it.
Yes. Enter a negative figure for deflation and the factor falls below 1, so the future cost is lower than today’s and the present-day equivalent of a future sum is higher. India has had brief deflationary months in individual categories, though sustained general deflation is rare.
No. It converts a sum of money across time at the inflation rate and nothing else. Tax matters enormously when you are comparing an investment against inflation — that comparison belongs in the real return calculator, after tax.
It is the number you multiply by. A factor of 3.34 means prices are 3.34 times higher, cumulative inflation is 234%, and one rupee then buys what 30 paise buys today. Quoting the factor alongside the percentage avoids the common error of reading 234% cumulative inflation as 234% per year.
It is the all-India headline Consumer Price Index (Combined) inflation print for July 2026, published by the Ministry of Statistics and Programme Implementation. It is offered as a starting point, not a forecast — the whole point of the presets is that you should choose the rate that matches what you are actually buying.