See Exactly How Much Your Lumpsum Investment Can Grow To
Enter any amount you plan to invest once, pick an expected annual return, and this lumpsum calculator instantly shows you the future maturity value – no spreadsheets, no guesswork.
Whether you are putting ₹50,000 into a mutual fund or parking ₹5 lakh in a fixed plan, you will know what that single payment could become in 5, 10, or 20 years.
A = P × (1 + r)t. For example, ₹1,00,000 invested at 12% per year for 10 years grows to ₹3,10,585. Unlike a SIP (monthly investment), a lumpsum is a single one-time investment. Returns are indicative and market-linked; actual mutual fund returns vary. Everything runs in your browser – nothing is uploaded.How to Use This Lumpsum Calculator
- Enter your investment amount – the one-time lumpsum you plan to invest (e.g. ₹1,00,000).
- Set the expected annual return (%) – use the historical average of your chosen fund category (e.g. 10–14% for equity mutual funds).
- Choose the investment period – how many years you plan to stay invested (1 to 40 years).
- Read the result – the calculator shows your maturity value (future value), total gain, and a growth chart so you can see compounding in action.
You can change any number and the result updates instantly. No sign-up, no login needed.
Worked Example – ₹2 Lakh at 12% for 15 Years
Imagine you invest a lumpsum of ₹2,00,000 in an equity mutual fund today and expect 12% annual returns over 15 years.
| What you put in | Expected return | Period | Maturity value |
|---|---|---|---|
| ₹2,00,000 | 12% p.a. | 15 years | ₹10,89,302 |
| ₹2,00,000 | 10% p.a. | 15 years | ₹8,35,447 |
| ₹2,00,000 | 8% p.a. | 15 years | ₹6,34,434 |
At 12%, your ₹2 lakh becomes roughly ₹10.9 lakh – a gain of ₹8.9 lakh without investing anything more. That is the power of compound growth on a one-time investment.
How the Lumpsum Future Value Is Calculated
The calculator uses the standard compound interest formula:
A = P × (1 + r)^t
Where:
A = Maturity value (future value)
P = Principal (your one-time investment)
r = Annual return rate as a decimal (e.g. 12% = 0.12)
t = Number of yearsFor the example above: A = 2,00,000 × (1 + 0.12)^15 = 2,00,000 × 5.4736 = ₹10,94,713 (small differences due to rounding).
This is annual compounding. Mutual funds grow daily, so real maturity values may differ slightly – but this formula gives an excellent planning estimate.
Lumpsum vs SIP – Which Is Which?
A lumpsum investment means you put in one amount on day one and let it grow. A SIP (Systematic Investment Plan) means you invest a fixed amount every month. Both use compounding, but the maths is different. Use this page for lumpsum; use a SIP calculator for monthly investments.
Tax on Lumpsum Mutual Fund Returns – FY 2025-26 / AY 2026-27
Returns are not entirely tax-free. Here is what applies for the current financial year:
| Fund type | Holding period | Gain type | Tax rate |
|---|---|---|---|
| Equity mutual fund | Under 12 months | STCG | 20% |
| Equity mutual fund | 12 months or more | LTCG | 12.5% (gains above ₹1.25 lakh exempt) |
| Debt mutual fund | Any period | – | As per income tax slab |
The STCG rate on equity funds was revised to 20% and the LTCG exemption limit raised to ₹1.25 lakh from the Union Budget 2024, effective from 23 July 2024 – applicable in FY 2025-26 as well. Surcharge and cess are additional. Check incometax.gov.in for the latest rates and your exact slab.
This calculator shows pre-tax maturity value. Plan to deduct applicable tax from your gains to get the real in-hand amount.
Practical Tips to Get the Most Out of This Tool
- Use realistic return rates. Nifty 50 index funds have delivered roughly 12–14% CAGR over long periods, but past performance does not guarantee future returns. For conservative planning, try 10–11%.
- Time beats rate. Doubling the investment period often matters more than chasing an extra 1–2% return. Run the calculator both ways to see this yourself.
- Factor in inflation. If inflation averages 6%, a 12% return gives you a real return of about 6%. Your maturity value in today's purchasing power will be lower than the nominal figure shown.
- Do not enter a rate above 15–16% for equity. Very high return assumptions give unrealistically rosy numbers and lead to under-saving.
- Check fund category averages on AMFI. The Association of Mutual Funds in India (AMFI) publishes category-wise returns – a good starting point for choosing your rate.
- This is a planning tool, not a guarantee. Market-linked returns vary year to year. Use this number to set a savings goal, not as a promised payout.
Your data never leaves your device. Every calculation runs entirely in your browser – nothing is sent to any server, stored, or shared.
Plug in your numbers above, see what your money could become, and start planning your next investment with confidence.