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Goal-Based Investment Calculator

Convert a goal stated in today's rupees into its future cost, subtract the future value of current investments and estimate the monthly or lump-sum funding gap.

Editable assumptionsIndian rupeesBrowser-only inputs

Interactive model

Convert today's goal into a funding plan

Inputs stay on this device

The result is a transparent planning illustration—not a promised corpus or a product recommendation.

Goal cost in today's rupees

₹

Current investments for this goal

₹

Years until goal10 years1 years30 yearsInflation assumption6%0%12%Expected annual return10%0%20%

Use an after-fee, after-tax return where possible. Constant returns do not capture sequence risk.

Future goal cost₹89.5 lakh

Future value of current corpus₹38.9 lakh

Funding gap at goal date₹50.6 lakh

Estimated monthly investment₹25,335Month-end contributions

Goal cost versus current corpus growth

Y0Y1Y2Y3Y4Y5Y6Y7Y8Y9Y10

Future goalCurrent corpus

Explain my result

The entered goal grows from ₹50 lakh today to ₹89.5 lakh after 10 years. The current corpus is modelled to reach ₹38.9 lakh, leaving a ₹50.6 lakh future gap. Funding that gap requires about ₹25,335 at each month-end or ₹19.5 lakh invested today under the same constant return assumption.

Compare scenario

What this means

A funding gap is not a product recommendation. It shows how the plan changes when time, inflation, existing capital and the expected return interact.

Goals are paid at future prices. A static ₹1 crore target can become inadequate even when the investment account reaches the original number.

Calculation method

How this tool works

Future goal = today's cost × (1 + inflation)^years. Monthly investment uses the future value of an end-of-month contribution series at the entered annual return.

The tool compounds inflation annually and converts the expected annual return into an equivalent monthly rate. It assumes month-end contributions, steady returns and no tax or product costs unless the user reduces the expected return accordingly.

View calculation limitations

Results depend entirely on the values and scenarios entered. The model simplifies real legal, tax, liquidity, valuation and market conditions and should be used to understand relationships—not to predict an actual investment outcome.

Common mistakes

Where a correct calculation can still mislead.

01
Using today's goal cost as the future target.
02
Entering a pre-fee, pre-tax return as though the investor receives it.
03
Assuming returns arrive smoothly every year.
04
Ignoring an emergency reserve and nearer cash needs.

Continue through the knowledge graph

Tools, guides and real cases connected to this result.

Learn the concept

Investment First Principles→Investment Return Measures→Portfolio Allocation→

Test it in a case

Berkshire's compounding record: the return came from a system, not a CAGR slogan→Gold in 2025: record demand, but three different buyers with three different motives→

Questions investors ask

Answers without the sales pitch.

Is the monthly amount guaranteed to reach the goal?

No. It is the contribution implied by constant assumptions. Actual returns, inflation, fees, taxes and missed contributions change the result.

Should I use the same inflation rate for every goal?

Not necessarily. Education, healthcare, property and lifestyle costs can move differently from a broad consumer-price index.

Why is the lump-sum requirement lower than the future gap?

The lump sum is invested today and is assumed to compound for the full period.

Important information

AssetsNest tools and calculations are provided solely for educational and informational purposes. Results are illustrative and depend on assumptions entered by the user. Actual performance, liquidity, fees, taxes, risks and outcomes may differ materially. Nothing on this page is investment advice, a recommendation, solicitation, assurance of returns or an offer to buy or sell any security or investment product. Investors should conduct independent due diligence and consult appropriately qualified financial, legal and tax professionals where required. AssetsNest Investor Services — ARN 318691.

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Change the assumptions. Then read the evidence.

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