Inflation Calculator
See the Real Value of Money Over Time — Future, Past, or Real Purchasing Power
Find out what your money will be worth in the future, what it was worth in the past, or how much purchasing power you have lost to inflation. Use India's average of ~6%, the US average of ~3%, or enter any custom rate. Instant results with full breakdown.
What Is Inflation and Why Does It Matter?
Inflation is the rate at which the general price level of goods and services rises over time, which correspondingly decreases purchasing power. If inflation is 6% per year, something that costs ₹100 today will cost ₹106 next year, and ₹179 in 10 years.
Inflation matters profoundly to investors, savers, and anyone planning their financial future. Money sitting in a savings account earning 3% while inflation runs at 6% is effectively losing value at 3% per year. Understanding inflation helps you make smarter investment decisions to protect and grow real wealth.
In India, the Reserve Bank of India (RBI) targets a CPI inflation rate of 4% with a tolerance band of 2%–6%. Historically, India's average CPI inflation has been around 6%, making it important to factor this into long-term financial planning.
How to Use the Inflation Calculator
- Enter the Amount: Type the amount of money you want to analyse — for example, your savings, a product price, or a salary figure.
- Set the Inflation Rate: Enter 6% for India's historical average, 3% for the US, or any custom rate relevant to your situation.
- Choose the Time Period: Enter the number of years over which you want to measure inflation's impact.
- Select Calculation Mode:
- Future Value: What will ₹X cost after N years at this rate?
- Past Value: What was ₹X worth N years ago?
- Real Purchasing Power: What is the real today-equivalent of ₹X from N years ago?
- Read the Results: The result box shows the adjusted amount, purchasing power change (in % and absolute), and cumulative inflation over the period.
Inflation Formula Explained
Future Value Formula
Future Value = Amount × (1 + inflation rate)^years
This tells you what today's ₹X will cost in the future. For ₹1,00,000 at 6% for 10 years: ₹1,00,000 × (1.06)^10 = ₹1,79,085.
Past Value / Real Purchasing Power Formula
Past Value = Amount / (1 + inflation rate)^years
This tells you what ₹X was worth in the past in today's money. ₹1,00,000 earned 10 years ago at 6% inflation has a present real equivalent of ₹1,79,085.
Cumulative Inflation
Cumulative Inflation % = ((1 + rate)^years − 1) × 100
At 6% for 10 years, cumulative inflation = ((1.06)^10 − 1) × 100 = 79.1%. Prices rise by 79.1% over a decade at 6% annual inflation.
Real Return After Inflation
Real Return = ((1 + nominal return) / (1 + inflation)) − 1
A 10% FD return with 6% inflation: Real Return = (1.10 / 1.06) − 1 = 3.77% — not the 4% that simple subtraction would suggest.
Inflation Impact Reference Table — ₹1,00,000 at 6%
| Years | Future Value | Purchasing Power Loss | Cumulative Inflation |
|---|---|---|---|
| 1 year | ₹1,06,000 | ₹6,000 | 6.0% |
| 3 years | ₹1,19,102 | ₹19,102 | 19.1% |
| 5 years | ₹1,33,823 | ₹33,823 | 33.8% |
| 10 years | ₹1,79,085 | ₹79,085 | 79.1% |
| 15 years | ₹2,39,656 | ₹1,39,656 | 139.7% |
| 20 years | ₹3,20,714 | ₹2,20,714 | 220.7% |
| 25 years | ₹4,29,187 | ₹3,29,187 | 329.2% |
Practical Inflation Examples
Example 1: Retirement Planning
You estimate needing ₹50,000/month in today's terms for retirement in 20 years. At 6% inflation, your monthly need will be ₹50,000 × (1.06)^20 = ₹1,60,357/month. Planning with today's figures severely underestimates future needs.
Example 2: Salary Comparison
You earned ₹5,00,000 per year 10 years ago. What is that salary worth in today's terms? ₹5,00,000 × (1.06)^10 = ₹8,95,425. If your current salary is less than ₹8.95 lakh, your real income has actually declined.
Example 3: Property Price Reality Check
A house cost ₹30,00,000 in 2014. At 6% general inflation, the 2024 equivalent cost should be ₹30,00,000 × (1.06)^10 = ₹53,72,550. If the property now costs ₹90 lakh, it has actually appreciated in real terms beyond inflation.
How to Protect Yourself from Inflation
- Invest, don't just save: Savings accounts earn 3–4%, well below India's historical 6% inflation. Money parked in savings loses real value every year.
- Equity over the long term: Indian equity markets have historically delivered 12–15% returns over 10+ year periods, significantly beating inflation.
- Real estate as a hedge: Property values and rental income tend to rise with or above inflation over the long term, preserving real wealth.
- Gold as partial hedge: Gold is a classic inflation hedge but is volatile. Limit exposure to 5–10% of your portfolio.
- Inflation-linked bonds: RBI's Inflation-Indexed Bonds or Sovereign Gold Bonds offer returns linked to inflation, providing direct protection.
- Increase income regularly: Ensure your salary growth at least keeps pace with inflation. A flat salary is a pay cut in real terms.
- Recalculate financial goals periodically: Goals set today in nominal terms will be insufficient in 10–20 years. Always use real (inflation-adjusted) values for long-term planning.
Frequently Asked Questions
Inflation is the rate at which the general level of prices rises, reducing purchasing power over time. At 6% annual inflation, something costing ₹100 today costs ₹106 next year, and ₹179 in 10 years. It affects everything from groceries to property prices to retirement savings.
India's CPI inflation averages around 5–7% over the past decade, with the RBI targeting 4% (+/- 2%). For long-term financial planning — retirement, education, major purchases — 6% is the most commonly used baseline estimate for India.
If your savings earn less than the inflation rate, your real wealth decreases each year. ₹1,00,000 in a savings account earning 3% with 6% inflation effectively loses about 3% of its real value annually. After 10 years, its real purchasing power is only about ₹74,000 in today's terms.
Divide 70 by the annual inflation rate to estimate how many years it takes for prices to double. At 7% inflation: 70/7 = 10 years. At 6% inflation: 70/6 ≈ 11.7 years. This quick mental math helps with long-term planning and understanding inflation's compounding power.
Future Value = Amount × (1 + rate)^years. Past/Real Value = Amount / (1 + rate)^years. Cumulative Inflation % = ((1 + rate)^years − 1) × 100. Real Return after inflation = ((1 + nominal) / (1 + inflation)) − 1. All calculations use compound (not simple) inflation, which is the economically accurate method.
Use the Fisher equation: Real Return = ((1 + nominal return) / (1 + inflation rate)) − 1. For a 10% FD with 6% inflation: (1.10 / 1.06) − 1 = 3.77% real return. Simply subtracting (10% − 6% = 4%) is an approximation that slightly overstates the real return.
Historically, equity mutual funds and direct stocks have delivered 12–15% over long periods, well above India's 6% inflation. Real estate, gold, and PPF (currently ~7.1%) also outpace inflation over the long term. Savings accounts and cash consistently lose to inflation and should only be used for emergency funds and short-term liquidity.