Lumpsum Calculator
Estimate the future value of a one-time investment using expected annual return and duration.
Tax year 2026 - Updated June 2026
Lumpsum inputs
Estimated future value
₹15,52,924
From a one-time investment of ₹5,00,000 for 10 years at an assumed 12% annual return.
Invested amount
₹5,00,000
Estimated returns
₹10,52,924
Invested: 32%Returns: 68%
Annual rate used
12.00%
Duration
10 years
Growth multiple
3.11x
Inflation-adjusted estimate
₹8,67,145
Real return: 5.66%
Nominal value
₹15,52,924
Purchasing-power loss
₹6,85,779
Cumulative inflation
79.08%
Uses 6% annual inflation to show today-value purchasing power. This is still an estimate, not a guaranteed real return.
Formula used
- Annual rate = expected annual return / 100.
- Future value factor = (1 + annual rate) ^ investment duration.
- Future value = one-time investment x future value factor.
- Estimated returns = future value - invested amount.
- This assumes annual compounding and a fixed return rate for the full duration.
- Inflation-adjusted value = future value / (1 + expected inflation) ^ duration years.
- Real annual return = (1 + expected return) / (1 + expected inflation) - 1.
Quick answers
Lumpsum Calculator FAQs
What is a Lumpsum Calculator?
A Lumpsum Calculator estimates the future value of a one-time investment using investment amount, expected annual return, and duration.
How is lumpsum future value calculated?
The calculator compounds the initial investment for the selected duration using the expected annual return assumption.
Is lumpsum better than SIP?
Lumpsum can benefit when money is invested early and markets grow, while SIP spreads investments over time. The better option depends on cash availability and risk comfort.
Does the Lumpsum Calculator include inflation?
It can show nominal growth based on expected return. Use inflation-adjusted views or the Inflation Calculator when you want to understand real purchasing power.
Are lumpsum returns guaranteed?
No. Market-linked returns are not guaranteed. The result is only an estimate based on the return assumption you enter.
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Assumptions
- Assumes the full investment amount is invested at the start of the period.
- Assumes a fixed expected annual return compounded annually.
- Does not include taxes, exit loads, expense ratios, inflation, or market volatility.
- Actual investment returns can be higher or lower than the estimate.
Disclaimer
The information and calculations provided on this website are for general informational and educational purposes only. Results are estimates based on publicly available tax rules and assumptions and may not reflect your actual tax liability or take-home pay. This content does not constitute tax, legal, accounting, or financial advice. Tax laws and regulations change frequently and vary based on individual circumstances. Consult a qualified tax professional, accountant, or financial advisor before making any financial decisions.
This website is not affiliated with the IRS, HMRC, Income Tax Department of India, or any government agency.