

At 6% inflation, ₹1 crore will lose significant purchasing power over 20 years, equating to roughly ₹31 lakh in today’s terms. Investing wisely can help maintain value, as leaving money idle in savings accounts risks financial stability due to inflation’s impact on real income.
I asked ChatGPT a simple question: at 6% inflation, what would ₹1 crore sitting idle in my savings account be worth after 20 years if I don’t invest it? The answer was baffling.
The AI tool responded: “While the number in my bank account may still show ₹1 crore, its real purchasing power would shrink drastically. At 6% annual inflation, ₹1 crore today would be worth only around ₹31 lakh in today’s terms after 20 years.” This is if the money sits completely idle in a bank account.
However, considering banks provide a 3% interest rate on savings accounts, the purchasing power would be ₹56–57 lakh in today’s terms.
This means that though I will still have the money, I will lose the ability to buy what I can today with that amount. In today’s context, ₹1 crore is considered a healthy retirement corpus. If invested wisely, it can provide a monthly income of ₹70,000 to ₹80,000 for the next 20 years at a 6% to 8% interest rate.
Now, in 20 years’ time, at a 6% inflation rate, the real value or purchasing power of ₹80,000 would shrink to ₹25,000 in today’s terms. With this reduced value, it would be challenging to meet basic living expenses, healthcare needs, and unexpected emergencies in the future.
This is the biggest danger of leaving money idle in a low-interest savings account. Even though there is no risk of losing the principal, inflation eats away its purchasing power.
Step 1: Growth from savings account interest
If ₹1 crore earns 3% annual interest for 20 years:
Future Value = 1,00,00,000 × (1.03)²⁰
This becomes: ₹1,00,00,000 × 1.806 ≈ ₹1.81 crore
So, your bank balance may show around ₹1.81 crore after 20 years.
Step 2: Adjust for inflation
If inflation is 6% annually, prices rise like this:
Inflation factor = (1.06)²⁰
This becomes: (1.06)²⁰ ≈ 3.207
This means something that costs ₹1 today may cost about ₹3.2 after 20 years.
Step 3: Find real purchasing power
Real value = ₹1.81 crore ÷ 3.207 ≈ ₹56–57 lakh
How much money would you need in 20 years to have the same purchasing power as ₹1 crore today?
As per an inflation calculator, to have the same purchasing power as ₹1 crore today in 20 years, you would need about ₹3.2 crore. If this amount is well invested for the long term at a 6% to 8% return, it could generate a monthly income of ₹1.6 lakh to ₹2.1 lakh.
Now again, if you calculate, at a 6% inflation rate, the purchasing power of ₹2.1 lakh would shrink to around ₹70,000 in today’s terms.
The only way to protect money from this risk is by investing in instruments that can beat inflation. It is also important to diversify investments across asset classes so that money remains protected from market volatility while ensuring steady long-term growth.