Investing calculator

Mutual Fund Calculator

Use this mutual fund calculator to estimate how a lump sum, a SIP-style contribution, or both may grow over time after assumed returns, expense ratio, fees, and inflation. It is an educational projection only and does not recommend any fund.

Lump sum fund investing SIP / regular investing Expense ratio impact Lump sum + SIP Equity / debt / index
Project my fund See a worked example

Free, no sign-in, educational estimate. Mutual fund returns are market-linked and not guaranteed.

Mutual Fund

Educational projection only — not investment, tax, or financial advice, and no fund recommendation. Returns are assumptions, not guarantees, and real results vary with markets, fees, taxes, inflation, and timing.

Mutual fund setupSIP / regular · Equity fund

Choose how you invest and label the fund type. The label is for your reference only — this tool does not recommend any fund and returns are not guaranteed.

A label for your own reference. No recommendation implied.

Your investment8.0% · 10 yrs

How much you invest, for how long, and the return you assume.

$

The amount you add each period.

8.0%

Use a cautious long-term assumption. Not guaranteed; higher returns usually mean higher risk.

10 years

Longer horizons give earlier money more time to compound.

%

Shows the future amount in today's purchasing power.

Contribution detailsMonthly · end

How and when you contribute. Beginning-of-period contributions have slightly longer to compound.

Contribution timing
%

Raise the contribution each year, e.g. with pay rises.

Compounding, fees & taxAnnually

Expense ratio and exit load are the fund-specific costs. Tax is a simplified estimate on the total gain.

How often the return compounds.

%

Platform / advisory cost. Reduces the effective return.

%

The fund's annual cost. Reduces the effective return.

%

Taken from the final value on redemption. Optional.

%

Simplified estimate taken from the total gain at the end. Real tax varies by country and account.

What this means

  • About 33% of your projected value comes from growth and 67% from what you invested. Growth becomes a bigger share the longer you stay invested.
  • Inflation meaningfully erodes buying power: at 3.0% inflation, $90,062 is worth about $67,015 in today's money — roughly 26% less. Judge progress against the real value.
  • At 8.0%, money roughly doubles about every 9.0 years (Rule of 72).

Invested vs growth

Stacked yearly balance

YearInvestedGrowthValue
1$6,000$217$6,217
2$12,000$931$12,931
3$18,000$2,183$20,183
4$24,000$4,014$28,014
5$30,000$6,472$36,472
6$36,000$9,607$45,607
7$42,000$13,473$55,473
8$48,000$18,127$66,127
9$54,000$23,634$77,634
10$60,000$30,062$90,062
Show data as a table
YearInvestedGrowthValue
1$6,000$217$6,217
2$12,000$931$12,931
3$18,000$2,183$20,183
4$24,000$4,014$28,014
5$30,000$6,472$36,472
6$36,000$9,607$45,607
7$42,000$13,473$55,473
8$48,000$18,127$66,127
9$54,000$23,634$77,634
10$60,000$30,062$90,062

Nominal vs real value

Inflation-adjusted balance over time

YearNominalReal
Y1$6,217$6,036
Y2$12,931$12,189
Y3$20,183$18,470
Y4$28,014$24,890
Y5$36,472$31,461
Y6$45,607$38,195
Y7$55,473$45,104
Y8$66,127$52,202
Y9$77,634$59,500
Y10$90,062$67,015
Show data as a table
YearNominalReal
Y1$6,217$6,036
Y2$12,931$12,189
Y3$20,183$18,470
Y4$28,014$24,890
Y5$36,472$31,461
Y6$45,607$38,195
Y7$55,473$45,104
Y8$66,127$52,202
Y9$77,634$59,500
Y10$90,062$67,015

Scenario comparison

Future value under different assumptions

ScenarioFuture valueReal value
Conservative return$81,237$60,448
Base case$90,062$67,015
Optimistic return$99,932$74,359
Higher inflation$90,062$55,290
Higher fee$87,762$65,303
Lower contribution$67,547$50,261
Higher contribution$112,578$83,768
Show data as a table
ScenarioFuture valueReal value
Conservative return$81,237$60,448
Base case$90,062$67,015
Optimistic return$99,932$74,359
Higher inflation$90,062$55,290
Higher fee$87,762$65,303
Lower contribution$67,547$50,261
Higher contribution$112,578$83,768

Scenario table

ScenarioReturnFuture valueReal valuevs base
Conservative return6.0%$81,237$60,448-$8,825
Base case8.0%$90,062$67,015—
Optimistic return10.0%$99,932$74,359+$9,870
Higher inflation8.0%$90,062$55,290+$0
Higher fee8.0%$87,762$65,303-$2,300
Lower contribution8.0%$67,547$50,261-$22,516
Higher contribution8.0%$112,578$83,768+$22,516

Expense ratio sensitivity

Expense ratioFuture valueDrag vs 0%
0.00%$90,062—
0.25%$88,904$1,158
0.50%$87,762$2,300
0.75%$86,636$3,426
1.00%$85,526$4,536
1.50%$83,351$6,711
2.00%$81,237$8,825

Year-by-year projection

Each year's contributions, growth, projected value, and inflation-adjusted value.

YearContributionsReturnEnding balanceReal valueTotal invested
1$6,000$217$6,217$6,036$6,000
2$6,000$714$12,931$12,189$12,000
3$6,000$1,251$20,183$18,470$18,000
4$6,000$1,832$28,014$24,890$24,000
5$6,000$2,458$36,472$31,461$30,000
6$6,000$3,135$45,607$38,195$36,000
7$6,000$3,866$55,473$45,104$42,000
8$6,000$4,655$66,127$52,202$48,000
9$6,000$5,507$77,634$59,500$54,000
10$6,000$6,428$90,062$67,015$60,000

What this mutual fund calculator shows

It projects how money invested in a mutual fund could grow, using your assumptions for return, expense ratio, exit load, inflation, and tax. You can invest as a one-off lump sum, a SIP/regular contribution, or both. It is educational: it does not predict any specific scheme’s performance and makes no recommendation.

Where to go next: For pure lump-sum growth, use the Investment Calculator → Lump Sum mode. For monthly SIP planning with step-ups, use the SIP / Regular Investment Calculator. For withdrawing from a fund portfolio (SWP), use the Retirement Withdrawal Calculator.

Lump sum vs SIP mutual fund investing

A lump sum invests all your money at once, so it works for the full period — an advantage when markets rise steadily. A SIP (Systematic Investment Plan) spreads investments over time, buying more units when prices are low and fewer when high, which averages your cost and reduces timing risk. Neither always wins: the better choice depends on the market path and your circumstances, which no calculator can predict. Use the SIP-vs-lump-sum view above to compare both with your own assumptions.

How expense ratio affects long-term returns

The expense ratio is the percentage a fund charges each year to cover its costs. It is deducted from returns, so it compounds against you. Over a long horizon a seemingly small difference — say 0.2% for an index fund versus 1.5% for an active fund — can compound into a large gap in the final value. The fee-sensitivity table above shows the projected value at expense ratios from 0% to 2% so you can see the impact for your own numbers.

Why inflation-adjusted value matters

A large future fund value can be misleading once you account for rising prices. The inflation-adjusted (real) value shows what the projected amount could buy in today’s money, and the real return shows growth after inflation. When planning for a future cost, compare against the real value, not the headline number.

Common mistakes

  • Ignoring the expense ratio — over decades it can quietly remove a large share of returns.
  • Comparing a future nominal balance with today’s costs without adjusting for inflation.
  • Assuming a single high return; equity fund returns are volatile and not guaranteed.
  • Forgetting exit loads and taxes, which reduce what you actually keep.
  • Treating the smooth projection as a forecast — real fund returns rise and fall.

Formula used

The projection uses the standard time-value-of-money formulas below. The expense ratio and any fee reduce the effective return; an exit load and a simplified tax are applied to the final value and gain.

Lump sum

FV = P × (1 + r)ᵗ

A one-off fund investment P grows at the effective net rate r for t years.

SIP / regular

FV = PMT × [ ((1 + i)ⁿ − 1) / i ]

The future value of recurring contributions at periodic net rate i over n periods.

Lump sum + SIP

FV = P(1 + i)ⁿ + PMT × [ ((1 + i)ⁿ − 1) / i ]

Combine both styles — each part compounds and is added together.

Net return & real value

Net = return − expense ratio − fees · Real = FV / (1 + π)ⁿ

The expense ratio and any fee reduce the growth rate; inflation π converts to today’s money.

Worked example (SIP)

A monthly SIP of ₹5,000 for 15 years at an assumed 12% return, with a 1.5% expense ratio, contributes ₹9 lakh in total. Figures are illustrative and rounded; the live calculator shows exact numbers in your currency.

Total invested

₹9,00,000

Estimated value

~₹20.8 lakh

Estimated growth

~₹11.8 lakh

Expense-ratio drag

Material over 15 yrs

Mutual-fund returns vary and are not guaranteed; the figures exclude anything not entered above and are an educational illustration only.

Frequently asked questions

What is a mutual fund calculator?

It is an educational tool that estimates how money invested in a mutual fund could grow over time, given an assumed return, an expense ratio, optional exit load and tax, and inflation. It projects the future value, total invested, growth, and inflation-adjusted value. It does not predict any specific fund and makes no recommendation.

Is this the same as a SIP calculator?

They overlap but are not identical. A SIP calculator focuses on regular monthly investing; this mutual fund calculator covers lump sum, SIP, or both, and adds the expense ratio and exit load. For deep SIP / step-up planning, use our dedicated SIP / Regular Investment Calculator, which this page links to.

Can I use this for lump sum mutual fund investing?

Yes — choose the "Lump sum" investing style to model a one-off fund investment. To compare a pure lump-sum projection against other modes, you can also use the Investment Calculator’s Lump Sum mode.

How does the expense ratio affect returns?

An expense ratio is the fund’s annual cost, deducted from returns. Because it compounds every year, even a small ratio can remove a large share of the final value over decades. The calculator shows the drag versus a no-fee version and a sensitivity table from 0% to 2%.

Does this include tax?

Only as a simplified optional estimate applied to the total gain at the end. Mutual fund taxation varies widely by country, fund type, and holding period — for example, equity vs debt funds and short- vs long-term holding can be taxed very differently. Always confirm with an official source or a qualified professional.

Are mutual fund returns guaranteed?

No. Mutual fund returns are market-linked and not guaranteed; they can be negative. Past performance does not predict future results. This calculator shows a smooth assumed return for illustration only — real returns are volatile.

What return rate should I enter?

Use a cautious long-term assumption appropriate to the fund type and its risk, and test a range. Equity funds are more volatile than debt funds; index funds track a market. Do not assume a single optimistic number — compare the conservative, base, and optimistic scenarios.

Should I use SIP or lump sum?

It depends on your situation and the market path, which no one can predict. A lump sum puts money to work sooner; a SIP spreads timing risk and suits investing from income. The SIP-vs-lump-sum view here illustrates both — it does not claim one always beats the other.

How is inflation-adjusted value calculated?

Real value = future value ÷ (1 + inflation)^years. It shows what the projected amount could buy in today’s money. A large nominal balance can be worth much less in real terms after years of rising prices.

Can I download the result in Excel?

Yes. The Download Excel button builds a premium, formula-driven workbook from your current inputs — inputs, a summary dashboard, year-by-year and month-by-month schedules, expense-ratio impact, fee sensitivity, scenarios, inflation, chart data, formula notes, and sources.

How Calculator Matters checks this calculator

  • Shared engine validated against closed-form future-value and annuity formulas
  • Excel workbook re-computed with an Excel-compatible formula engine (0 mismatches)
  • Sources drawn from investor-education references (SEC/Investor.gov, FINRA)
  • No fund is recommended and no return is guaranteed
  • Results are educational estimates from your assumptions
  • Errors can be reported and corrected

Last reviewed: June 2026 · Method: shared accumulation engine, validated against closed-form formulas and an Excel-compatible engine.

Reviewed by the Calculator Matters Editorial Team. Educational information, not investment advice; no fund is recommended. Found an error? corrections@calculatormatters.com.

Sources & references

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Mutual fund disclaimer

Mutual fund returns are market-linked and not guaranteed. This is an educational projection from your assumptions, not investment, tax, or financial advice, and it does not recommend or name any fund. Actual outcomes vary with market performance, expense ratios, exit loads, taxes, inflation, and investor timing.

Built and maintained by Calculator Matters · Last reviewed June 2026 · How we calculate · corrections@calculatormatters.com