Conversion table: 1975 rupees to 2025
| Amount in 1975 | Worth in 2025 |
|---|---|
| ₹100 | ₹2,905 |
| ₹500 | ₹14,524 |
| ₹1,000 | ₹29,049 |
| ₹5,000 | ₹1,45,245 |
| ₹10,000 | ₹2,90,490 |
| ₹50,000 | ₹14,52,449 |
| ₹1,00,000 | ₹29,04,899 |
| ₹10,00,000 | ₹2,90,48,985 |
| ₹1,00,00,000 | ₹29,04,89,854 |
What was happening in 1975
1975 sat at the tail of the oil-shock inflation, and was followed by something rare: outright deflation of about 7.6% in 1976, when prices actually fell. It is the only significant deflationary episode in the whole series.
Inflation during 1975 itself was 5.7%. Across the 50 years since, prices have risen 29× in total, which works out to an average of 7% compounded annually. Put the other way round, a rupee from 1975 retains about 3.4% of its original buying power today.
Why this matters
Long-run numbers like these are the clearest argument against holding wealth in cash. Money left idle since 1975 would have lost roughly 96.6% of what it could buy, without a single rupee being spent. To merely stand still, savings had to earn 7% a year after tax — and to actually grow, more than that.
The same logic applies forwards. If you are planning for a goal decades away, the sum you need is not today's price but tomorrow's. Our inflation calculator projects that forward, and the FIRE calculator applies it to a full retirement corpus.