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Inflation Calculator – Purchasing Power Impact Estimator

Understand how inflation affects your money's value over time with our easy-to-use inflation calculator.

Last updated: April 2026

1,00010,00,000
1 Year30 Years
1%15%
Future Value
100,000
Equivalent Value After Inflation
55,839
Purchasing Power Loss
44.16%
Cumulative Inflation
79.08%
Inflation Impact Summary

Value Today

100,000

Equivalent Value After 10 Years

₹55,839

What is an Inflation Calculator?

An inflation calculator is a financial tool designed to help you understand how inflation erodes the purchasing power of your money over time. It translates the value of money from one time period to another, accounting for the effects of inflation.

Inflation represents the rate at which the general level of prices for goods and services rises, causing purchasing power to fall. For example, what you could buy with ₹100 ten years ago would cost significantly more today due to inflation. This calculator helps you quantify that difference.

The calculator can work in two directions: it can show you how much your current money will be worth in the future (future value calculation), or it can tell you how much money you would have needed in the past to have the equivalent of a certain amount today (past value calculation). This helps in financial planning, understanding historical costs, and preparing for future expenses.

How to use this calculator

  1. 1
    Select the calculation typeChoose between 'Future Value' to see how inflation will affect your money's value in the future, or 'Past Value' to see what a current amount was worth in the past.
  2. 2
    Enter the amountInput the amount of money you want to calculate for - either your current amount or a target future amount.
  3. 3
    Set the time periodSpecify the number of years for the calculation.
  4. 4
    Enter the inflation rateInput the expected annual inflation rate. The historical average in India has been around 6-7%, but you can adjust this based on current economic conditions or forecasts.
  5. 5
    View the resultsThe calculator will show you the impact of inflation on your money's purchasing power, including the equivalent value after inflation and the percentage of purchasing power lost.
  6. 6
    Analyze the charts and tablesExplore the visual representations to better understand how inflation affects your money over time.

Formula & example

FV = PV × (1 + i)^n

FV= Future Value (inflation-adjusted amount)
PV= Present Value (current amount)
i= Annual inflation rate (as a decimal)
n= Number of years

Let's calculate the impact of inflation with the following parameters:

  • Current Amount (PV): ₹1,00,000
  • Inflation Rate (i): 6% per year (0.06 as a decimal)
  • Time Period (n): 10 years

Future Value Calculation:

To find how much money you would need in 10 years to have the same purchasing power:

FV = PV × (1 + i)^n

FV = ₹1,00,000 × (1 + 0.06)^10

FV = ₹1,00,000 × 1.7908

FV = ₹1,79,080

This means you would need ₹1,79,080 in 10 years to buy what ₹1,00,000 can buy today, assuming a 6% annual inflation rate.

Purchasing Power Loss:

The purchasing power of your ₹1,00,000 after 10 years would be:

Real Value = PV ÷ (1 + i)^n

Real Value = ₹1,00,000 ÷ (1 + 0.06)^10

Real Value = ₹1,00,000 ÷ 1.7908

Real Value = ₹55,840

This means your ₹1,00,000 would only have the purchasing power of about ₹55,840 in today's terms after 10 years of 6% inflation.

Purchasing Power Loss Percentage:

Purchasing Power Loss = (PV - Real Value) ÷ PV × 100

Purchasing Power Loss = (₹1,00,000 - ₹55,840) ÷ ₹1,00,000 × 100

Purchasing Power Loss = ₹44,160 ÷ ₹1,00,000 × 100

Purchasing Power Loss = 44.16%

This means your money would lose about 44.16% of its purchasing power over the 10-year period due to inflation.

Benefits

Financial Planning

Account for inflation when setting long-term financial goals to ensure you save enough for future needs.

Investment Decision Making

Evaluate whether your investments are truly growing in real terms by comparing returns against inflation.

Retirement Planning

Estimate how much your retirement corpus needs to grow to maintain your desired lifestyle in the future.

Education Fund Planning

Calculate how much you'll need to save for your children's education, accounting for education inflation.

Salary Negotiations

Understand how much your salary needs to increase annually just to maintain the same purchasing power.

Historical Cost Comparison

Compare costs across different time periods by adjusting for inflation to get a true perspective.

Use cases

Retirement Planning

A 30-year-old planning for retirement in 30 years can use the inflation calculator to understand that their current monthly expenses of ₹50,000 might require over ₹2.5 lakhs per month at a 6% inflation rate. This helps in setting realistic retirement corpus goals and determining the required monthly investments.

Education Fund Planning

Parents of a newborn can estimate the future cost of college education by calculating how much today's education costs will inflate over 18 years. If a 4-year degree costs ₹20 lakhs today, it might cost over ₹60 lakhs in 18 years at a 6% education inflation rate, helping parents plan their savings strategy accordingly.

Real Estate Investment Analysis

Investors can evaluate whether a property has truly appreciated in value by comparing its price growth against inflation. A house purchased for ₹50 lakhs in 2010 and sold for ₹1 crore in 2023 might seem like a great investment, but after adjusting for inflation, the real return might be much lower, providing a more accurate picture of the investment performance.

Salary Growth Evaluation

Professionals can assess whether their salary increases are keeping pace with inflation. If someone's salary has increased by 25% over 5 years but inflation has been 6% annually (about 34% compounded over 5 years), they're actually experiencing a decrease in purchasing power despite nominal salary growth.

Frequently asked questions

What is inflation?+

Inflation is the rate at which the general level of prices for goods and services rises, causing purchasing power to fall over time. It's typically measured as an annual percentage increase. As inflation rises, every rupee you own buys a smaller percentage of a good or service, effectively reducing your money's value.

How is inflation measured?+

Inflation is primarily measured using price indexes. In India, the main indexes are the Consumer Price Index (CPI) and the Wholesale Price Index (WPI). The CPI measures the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services, while WPI tracks the changes in the price of goods at the wholesale level before they reach consumers.

What causes inflation?+

Inflation can be caused by several factors: Demand-pull inflation occurs when demand exceeds supply, pushing prices up; Cost-push inflation happens when production costs increase, forcing businesses to raise prices; Built-in inflation results from workers expecting price increases and demanding higher wages, creating a cycle; Monetary inflation is caused by an increase in the money supply without a corresponding increase in output.

How does inflation affect my savings and investments?+

Inflation erodes the purchasing power of your money over time. If your savings or investments aren't growing at a rate equal to or greater than inflation, you're effectively losing money in real terms. For example, if inflation is 6% but your savings account pays only 4% interest, your money is losing 2% of its purchasing power annually. This is why it's important to invest in assets that can potentially outpace inflation.

What is the 'Rule of 72' in relation to inflation?+

The Rule of 72 is a simple way to estimate how long it will take for the value of your money to halve due to inflation. You divide 72 by the annual inflation rate to get the approximate number of years. For example, at 6% inflation, it would take about 12 years (72 ÷ 6 = 12) for your money to lose half its purchasing power.

How can I protect my money from inflation?+

Several strategies can help protect against inflation: Invest in equity markets, which historically have outpaced inflation over the long term; Consider real estate, which often appreciates with inflation; Look into inflation-indexed bonds like Inflation-Indexed National Savings Securities-Cumulative (IINSS-C) in India; Diversify your portfolio to include commodities like gold, which can serve as an inflation hedge; Regularly review and adjust your investment strategy to ensure it keeps pace with inflation.

What is the difference between nominal and real returns?+

Nominal return is the return on an investment before adjusting for inflation. Real return is the nominal return minus the inflation rate, representing the actual increase in purchasing power. For example, if an investment yields a 10% nominal return in a year with 6% inflation, the real return is only 4%. When evaluating investment performance, it's important to consider real returns to understand the true growth in purchasing power.