Lumpsum Investment Calculator
Calculate the future value of your one-time investment. See how ₹1 Lakh to ₹10 Lakhs grows over 10-20 years with powerful compounding.
Real-World Scenarios
At 12% for 20 years. Your money multiplies by nearly 10x through the power of time.
If you can stay invested for 2 decades, small six-figure bonuses become nearly a crore.
Professional Strategy Insights
- The Time-in-Market Rule: For lumpsum investments, the day you start matters less than the number of years you stay. Don₹t wait for the ₹perfect₹ dip.
- STP Strategy: If you have a large sum (e.g. ₹50L), put it in a liquid fund and ₹Systematically Transfer₹ (STP) it into equity to avoid timing risk.
Frequently Asked Questions
Lumpsum vs SIP: Which is better?
Lumpsum is better when the market is low (undervalued). SIP is better for consistent earners to average out the costs.
What is the 72 Rule?
Divide 72 by your interest rate to find how many years it takes for your lumpsum to double. At 12%, it doubles every 6 years.
Mathematical Methodology
At eCalcy, transparency is our core principle. This SIP calculator utilizes the Future Value (FV) of Annuity Due formula with monthly compounding intervals (n=12). We account for compounding frequencies (Quarterly for FD, Monthly for SIP/EMI) to ensure high accuracy compared to official bank statements.
Financial Disclaimer
Calculations provided by eCalcy are estimates for educational purposes only. They do not constitute financial advice. Fixed deposit rates and mutual fund returns are subject to market risks and bank policy changes.
Always consult a SEBI-registered advisor or certified CA before making investment decisions.
Verified Data Sources
Ritesh Narang
Editorial AuthorLead Finance Researcher & Editorial Director, eCalcy
Financial technology and calculator design
Reviewed: April 2026
eCalcy publishes calculator logic, methodology notes, and editorial pages so users can see the assumptions behind each result. The tools are for planning and education only, and critical financial decisions should still be checked against official sources or a licensed professional.