Planning
Rule of 72 Money Doubling Calculator
Verified Indian financial mathematics, statutory regulations, and step-by-step actionable breakdowns.
SIP (Systematic Investment Plan)
Monthly compounding in Equity & Hybrid Mutual Funds
Monthly Investment Amount₹10,000
Expected Annual Returns (CAGR)12.0%
Time Horizon15 Years
Invested Amount
₹18,00,000
Wealth Gained
₹32,45,760
Total Corpus
₹50,45,760
Mathematical Formula & Calculation Engine
The Rule of 72 is an accurate mathematical shortcut: Years to double ≈ 72 / Annual Interest Rate.
Years = 72 / Rate (%)
Why Use the Rule of 72?
Instant mental math for comparing investment options
Highlights the vast difference between 7% debt vs 12% equity compounding
Rule of 72 FAQs
At 7% in an FD, money doubles in 10.3 years. At 12% in an equity fund, money doubles in just 6.0 years. Over 30 years, 12% turns ₹10 Lakhs into ₹3.2 Crores vs ₹76 Lakhs at 7%!
Explore Other Calculators
Compare results across other wealth simulation tools.