Inflation Calculator
Personal FinanceInflation quietly raises prices and shrinks what your money can buy. See both effects over your chosen horizon.
In short: The Inflation Calculator is a free online tool that lets you see the future cost of today’s expenses and how inflation erodes value — instantly, with charts, a worked example and the exact formula.
Your inputs
Your inputs
- Current amount
- ₹1,00,000
- Inflation rate
- 6%
- Period
- 10 yrs
Cost in future
₹1,79,085
after 10 yrs
Today's buying power
₹55,839
of the same amount later
Value eroded
₹44,161
Cost vs purchasing power
What today’s amount will cost, and what it will be worth.
Year-wise impact
| Year | Future cost | Buying power |
|---|---|---|
| 1 | ₹1,06,000 | ₹94,340 |
| 2 | ₹1,12,360 | ₹89,000 |
| 3 | ₹1,19,102 | ₹83,962 |
| 4 | ₹1,26,248 | ₹79,209 |
| 5 | ₹1,33,823 | ₹74,726 |
| 6 | ₹1,41,852 | ₹70,496 |
| 7 | ₹1,50,363 | ₹66,506 |
| 8 | ₹1,59,385 | ₹62,741 |
| 9 | ₹1,68,948 | ₹59,190 |
| 10 | ₹1,79,085 | ₹55,839 |
Compounded at the assumed annual inflation rate.
How the Inflation Calculator works
Formula
- Amount
- Value today
- i
- Annual inflation rate (decimal)
- n
- Number of years
Step-by-step calculation
Worked with the default values.
- 1
Rate (i)
6% ÷ 100
= 0.06
- 2
Future cost
Amount × (1 + i)ⁿ
= ₹1,79,085
- 3
Buying power
Amount ÷ (1 + i)ⁿ
= ₹55,839
How it works
- Future cost shows how much more you’ll pay for the same goods later.
- Purchasing power shows how much today’s amount will actually be worth then.
- Investments must beat inflation to grow your wealth in real terms.
Examples
₹1,00,000 at 6% inflation for 10 years
Costs about ₹1.79 lakh in future; today’s ₹1 lakh will buy only ~₹55,800 worth.
Understanding the Inflation Calculator
The silent tax on your money
Inflation is often called a silent tax because it erodes wealth without ever appearing on a statement. Your bank balance may read the same ₹1,00,000 next year, but if prices have risen 6%, that money now buys only about ₹94,000 worth of goods. Left unchecked over a decade or two, this quiet erosion can quietly undo years of saving.
In India, headline consumer inflation has averaged roughly 5–7% over the long run, though categories like healthcare and education routinely run higher. Understanding how this compounds is the first step to protecting your purchasing power.
Two sides of the same coin
This calculator shows inflation from both directions:
- Future cost — how much more you will pay for the same goods later. A ₹1 lakh expense at 6% inflation becomes about ₹1.79 lakh in ten years.
- Purchasing power — how much today's money will actually be worth then. The same ₹1 lakh will buy only around ₹55,800 worth of goods after a decade.
Seeing both figures side by side makes the case for investing rather than hoarding cash unmistakable.
Why real returns matter more than headline rates
A fixed deposit advertising 7% sounds attractive, but if inflation is running at 6%, your real return is only about 1% — and after tax it may even be negative. This is the trap of nominal thinking. To genuinely grow wealth, your investments must clear inflation with room to spare.
Historically, the asset classes that have beaten inflation over long periods in India are:
- Equity and equity mutual funds, which have delivered double-digit returns over multi-year horizons.
- Gold and real estate, offering partial protection during inflationary spells.
- Fixed income, which is safer but often only keeps pace with inflation after tax.
Planning goals in future-value terms
The most common planning mistake is targeting a goal at today's prices. A wedding, a child's college fund or a retirement corpus should always be sized at its future cost. For long horizons like retirement, the effect is dramatic — a ₹50,000 monthly expense today can exceed ₹1.5 lakh in 20 years at 6% inflation. Use this calculator to project the future figure first, then work backwards to the monthly investment needed. Building that habit ensures inflation becomes a factor you have already planned for, not a surprise that derails you.
Pros
- Projects the true future cost of any goal so you plan for tomorrow’s prices, not today’s.
- Reveals hidden erosion in idle cash that a nominal balance hides.
- Helps set realistic retirement and education targets in future-value terms.
- Lets you compare investment returns on a real, after-inflation basis.
- Works for any horizon, from a one-year purchase to a 30-year retirement.
Cons
- Assumes a single constant inflation rate, whereas real inflation varies year to year.
- General CPI may not match your personal basket of expenses.
- It projects costs but does not account for the returns your investments earn.
- Long horizons magnify small errors in the assumed rate into large differences.
Tips
- 1Use a rate that reflects your own spending — education and healthcare inflation run higher than headline CPI.
- 2Always target the future cost of a goal, then work backwards to today’s SIP.
- 3Compare investments by their real return (return minus inflation), not the headline rate.
- 4Keep only your emergency fund in cash; invest the rest to outpace inflation.
- 5Revisit your assumed inflation rate every few years as economic conditions shift.
Frequently asked questions
Everything you need to know about the Inflation Calculator.
Why does inflation matter for savings?
What inflation rate should I use?
What is the difference between CPI and WPI inflation?
How is inflation different from purchasing power?
What is a real rate of return?
Why does inflation hurt my retirement corpus the most?
Which asset classes tend to beat inflation?
How does inflation affect loan EMIs?
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