Finance & Investment · Planning
Inflation Calculator
See what something that costs a certain amount today will cost in the future, how much purchasing power money loses to inflation, and what a future sum is worth in today's money.
Your inputs
Quick start — try a typical case
₹ 1 lakh
Negative values model deflation.
Your result Live
Cost after 10 years
₹1,79,085
What ₹1,00,000 buys today will cost this much at 6% inflation
- ₹1,00,000 Will Be Worth (today's money)
- ₹55,839
- Purchasing Power Lost
- 44.2%
- Prices Multiply By
- 1.79×
- Years for Prices to Double
- 11.9 years
Year by year
10 rowsAn estimate from the assumptions you entered, not a guaranteed outcome.
How this is calculated
Future cost = Today × (1 + i)^t · Value in today's money = Amount ÷ (1 + i)^t
- i
- Inflation per year (decimal)
- t
- Years
Inflation compounds like interest, but against you: at 6 % a year prices roughly double every 12 years. The same arithmetic run backwards tells you what a future sum is worth in today's money — essential when planning for goals years away.
Assumptions & sources
- Inflation is the same every year; actual inflation varies and differs by what you buy (education and healthcare often inflate faster than the headline CPI).
- No taxes or interest are considered — this is purely the change in purchasing power.
- 1Consumer Price Index (CPI) — methodology and data — Ministry of Statistics and Programme Implementation (MoSPI), Government of India
- 2Investments (Bodie, Kane & Marcus), chapters on returns, compounding and the time value of money — McGraw-Hill
Calculator ID FIN-PLAN-INFL-001 · version 2.0.0
Common questions
What inflation rate should I use?
India's long-run consumer inflation has been roughly 5–6 % a year, but goal-specific inflation can be higher — school and college fees and medical costs have often risen 8–10 % a year. Use the rate that fits what you are planning for.
Why does purchasing power fall faster than it looks?
Because inflation compounds. At 6 %, ₹1 lakh is worth about ₹55,800 in today's money after 10 years — a 44 % loss, not 60 %, but still far more than most people expect.