Lumpsum Investment Calculator — Compound Interest Returns
Calculate compound interest returns on one-time investments.
About this tool
Calculate how much your one-time investment will grow with compound interest. Enter your principal, expected return rate, and time period to see projected returns instantly.
What is a Lumpsum Investment?
A lumpsum investment means deploying a significant one-time amount into a mutual fund or investment vehicle at once. Unlike a SIP, the full principal starts compounding immediately from day one, making timing a key factor in maximising returns.
Compound Interest: Your Wealth Engine
With lumpsum investing, compound interest works on the full principal from the very first day. Time and rate both have an exponential effect — doubling either dramatically increases your final corpus. This makes patience the most underrated investment tool.
account_balanceLumpsum vs SIP
Lumpsum investing works best when markets are at a low or recovering from a correction. In a steadily rising market, SIPs outperform by averaging your cost across many entry points.
A ₹10L lumpsum at 12% p.a. grows to ₹31L in 10 years — over 3× your initial investment.
Quick Usage Guide
- 1Compound interest calculation for one-time investments
- 2Adjustable principal, rate, and tenure
- 3Visual breakdown of invested amount vs returns
- 4Instant results with no sign-up required
Frequently Asked Questions
help_outlineWhat is a lumpsum investment?
A lumpsum investment means putting in a larger one-time amount rather than spreading it across periodic installments like a SIP.
verifiedHow is lumpsum return calculated?
Using the compound interest formula: A = P × (1 + r/n)^(nt), where P is principal, r is annual rate, n is compounding frequency, and t is tenure in years.
quizWhat is the difference between lumpsum and SIP?
Lumpsum invests everything at once (higher reward if markets rise, higher risk if they fall), while SIP spreads investment over time and reduces timing risk.
account_balance_walletIs there a minimum investment amount?
This is a planning calculator — enter any amount. Actual mutual fund lumpsum minimums vary by fund and are typically ₹1,000 or more.