Lumpsum calculator
Estimate the future value of a one-time investment.
Your inputs
What do you want to find?
Advanced settings
How the yearly return is applied
Most apps divide the yearly return by 12, which shows about 3.5% more over 10 years. We use the effective rate by default, so 12% means 12% a year.
Adjusts for inflation so you can see real purchasing power.
Capital-gains tax if you redeem everything at the end (tax year 2026-27 rules).
Results
Generated on 11 Oct 2026
Your inputs
| What do you want to find? | Future value |
|---|---|
| Investment amount | ₹1,00,000 |
| Expected return (per year) | 12% |
| Time period | 10 years |
| How the yearly return is applied | Effective (12% = 12% a year) |
| Inflation (per year) | 6% |
| Show values in today's money | ✓ |
| Show value after tax | — |
Total value
₹3,10,585
- Amount invested
- ₹1,00,000
- Estimated gains
- ₹2,10,585
- Value in today's money
- ₹1,73,429
- After 6% yearly inflation
- Amount invested₹1,00,000(32%)
- Estimated gains₹2,10,585(68%)
See how a different amount, return or period changes the result, side by side.
Year-by-year breakdown
| Year | Invested in year | Total invested | Growth in year | Value at year end | In today's money |
|---|---|---|---|---|---|
| 1 | ₹0 | ₹1,00,000 | ₹12,000 | ₹1,12,000 | ₹1,05,660 |
| 2 | ₹0 | ₹1,00,000 | ₹13,440 | ₹1,25,440 | ₹1,11,641 |
| 3 | ₹0 | ₹1,00,000 | ₹15,053 | ₹1,40,493 | ₹1,17,960 |
| 4 | ₹0 | ₹1,00,000 | ₹16,859 | ₹1,57,352 | ₹1,24,637 |
| 5 | ₹0 | ₹1,00,000 | ₹18,882 | ₹1,76,234 | ₹1,31,692 |
| 6 | ₹0 | ₹1,00,000 | ₹21,148 | ₹1,97,382 | ₹1,39,147 |
| 7 | ₹0 | ₹1,00,000 | ₹23,686 | ₹2,21,068 | ₹1,47,023 |
| 8 | ₹0 | ₹1,00,000 | ₹26,528 | ₹2,47,596 | ₹1,55,345 |
| 9 | ₹0 | ₹1,00,000 | ₹29,712 | ₹2,77,308 | ₹1,64,138 |
| 10 | ₹0 | ₹1,00,000 | ₹33,277 | ₹3,10,585 | ₹1,73,429 |
Assumptions and method
Formula
- FV = L · (1 + i)^n
- Effective convention: FV = L · (1 + r)^years
Conventions used
- Monthly rate: i = (1 + r)^(1/12) − 1 (Effective (12% = 12% a year))
- Money moves at the start of each month, so an instalment earns that month's return.
Modelling notes
- Real values deflate by (1 + 0.06)^(months/12).
Not included
- Market ups and downs: the same return is assumed every month.
- Expense ratio, exit load and stamp duty, unless your expected return already allows for them.
- Income tax on gains (turn on the post-tax option to estimate it).
This is an illustration based on the return you entered. Actual returns vary and may be lower or negative.
Mutual fund investments are subject to market risks, read all scheme related documents carefully.
How it works
A lumpsum is a one-time investment. Its value grows by compounding: the gains of each year earn returns in the following years.
At a constant return r for t years, the future value is L × (1 + r)^t. Use the tabs to find the amount you need today for a goal, how long it will take, or the return required.
Frequently asked questions
Lumpsum or SIP: which is better?
If markets rise steadily, a lumpsum invested earlier earns more because all of it is invested for longer. A SIP spreads the entry price and reduces the regret of investing just before a fall. Our Lumpsum vs SIP calculator compares both.
What return should I assume?
Use a figure you would be comfortable with if markets disappoint. For diversified equity funds over 10+ years, 10–12% a year is a common planning assumption; debt funds 6–7%. Returns are not fixed, can be negative over short periods, and past performance may or may not be sustained in future.
What about inflation?
The “Value in today’s money” figure divides the result by (1 + inflation)^years, so you can see its purchasing power today.