2026-09-22 7 min read

Mutual Fund Return Calculator

Projected corpus, invested amount and wealth gained at the assumed return for a mutual fund. Live calculator with worked steps, charts and formulas.

Calculator

Monthly Investment (SIP) Help

Fixed amount invested every month.

Lump Sum / Initial Investment

Expected Return (p.a.)(%)

Time Horizon(years)

years

Expense Ratio (p.a.)(%)

This mutual funds calculator compounds monthly (SIP timing) and annually (lump sums) at the assumed return. Returns are assumed, not promised — use a conservative rate for goals.

Results

Optimal

Maturity / Corpus Value

$1,236,907

Net of expense ratio.

Total Invested

$650,000

Wealth Gained

$586,907

Effective CAGR

6.65%

Lost to Expense Ratio

$80,080

Money Multiple

1.90×

Live results update as you type — currently showing maturity / corpus value of $1,236,907. Replace the defaults with your own fund figures for an exact comparison.

Visualizations

Invested vs Gains

Invested53%

Gains47%

Corpus Growth Over Time

Formula

SIP instalments form a monthly annuity grown at the periodic return; the lump sum compounds geometrically alongside.

FV = SIP annuity at r + Lump × (1+r)^yrs

Alternative Form

Invested = SIP × months + Lump

Variables

Symbol	Name	Unit	Description
FV	Future corpus	currency	Value at the horizon including gains
PMT	Monthly SIP	currency	Fixed instalment each month
r	Expected return	percent	Annualized assumption before costs
n	Months invested	count	Years × 12

Explanation

Projected corpus, invested, gains and effective rate at the assumed return.

Step-by-Step Calculation

Follow each step to understand how the result is calculated from your inputs.

Step 1

Count total contributions: SIP × months plus lump sum.

Invested = SIP × months + Lump

SIP:$5,000

Months:120

Result: $650,000.00

Step 2

Grow the SIP annuity and the lump sum at the expected return.

FV = SIP annuity + Lump × (1+r)^yrs

Return:12.00%

Result: $1,316,987.79

Step 3

Repeat at return minus expense ratio for the net figure.

Net = FV at (r − expense)

Expense:1.00%

Result: $1,236,907.49 (drag $80,080.30)

Final Answer

$1,236,907

Worked Examples

See how the calculator works with different scenarios.

Scenario

The mutual fund return calculator run on the values above, showing the full calculation path rather than only the answer.

Inputs

Monthly Investment (SIP):5000

Lump Sum / Initial Investment:50000

Expected Return (p.a.):12

Time Horizon:10

Calculation

1. Count total contributions: SIP × months plus lump sum. → $650,000.00 2. Grow the SIP annuity and the lump sum at the expected return. → $1,316,987.79 3. Repeat at return minus expense ratio for the net figure. → $1,236,907.49 (drag $80,080.30)

Result

Maturity / Corpus Value: $1,236,907

Interpretation

Corpus $1,236,907.49 on $650,000 (6.65% effective CAGR); expenses consume $80,080.30.

Understanding Your Result

Your Result: Maturity / Corpus Value: $1,236,907

Typical range: A 12.00% return over 10y multiplies each invested rupee/dollar by roughly 1.90× before tax.

What This Means

Projected corpus, invested, gains and effective rate at the assumed return.

Why It Matters

Corpus $1,236,907.49 on $650,000 (6.65% effective CAGR); expenses consume $80,080.30.

Professional Interpretation

Corpus $1,236,907.49 on $650,000 (6.65% effective CAGR); expenses consume $80,080.30.

How this is calculated

SIP instalments form a monthly annuity grown at the periodic return; the lump sum compounds geometrically alongside.

What drives the result

Compounding rewards time more than timing. A fixed SIP buys fewer units when prices are high and more when low (rupee-cost averaging), while a lump sum maximizes time in the market. CAGR smooths a lump sum; XIRR correctly handles staged SIP cash flows.

Recommendations

•Prefer lower expense ratios — a 1% drag compounds to lakhs over a decade.
•Automate the SIP so compounding is uninterrupted.

Educational Content

Introduction

Fund growth comes from two engines: the return on money already invested and new contributions (SIP instalments or lump sums) joining the compounding base. Every figure here — corpus, gains, CAGR, XIRR — derives from projecting dated cash flows at an assumed return.

Concept Explanation

Applications

▸Projecting a SIP or lump sum to a goal corpus

▸Comparing two funds on CAGR or XIRR over identical windows

▸Translating a goal (education, retirement) into a monthly SIP

▸Judging whether a dividend payout or growth option suits you

Benefits

•Puts SIP, step-up SIP and lump sum on one comparable maths base
•Separates invested, gains and multiple so progress is trackable
•Annualizes correctly (CAGR for lump, XIRR for SIP)
•Shows the path year by year, not just the endpoint

Limitations

•Returns are assumed constant; markets are volatile and sequenced
•Expense ratios, taxes and exit loads modeled only where entered
•Inflation adjustment shown only in the inflation mode
•Past performance does not predict future returns

Best Practices

•Automate the SIP and step it up with income
•Compare XIRR for SIPs and CAGR for lump sums — never mix them
•Revisit assumptions yearly; extend tenure before chasing return
•Keep an emergency buffer outside the investment

Common Misconceptions

Myth: A higher return always wins

Truth: A higher assumed return with lower consistency often loses to a steadier compounder after costs and taxes.

Myth: SIP guarantees profits

Truth: SIPs average purchase cost; they do not guarantee positive returns in falling markets.

Practical Tips

•Automate the SIP; step it up with income.
•Extend tenure before chasing a higher assumed return.

Common Mistakes

Comparing SIP corpus with lump-sum corpus directly

Invested differs — compare XIRR/CAGR, not absolute corpus.

Assumptions

This calculator makes the following assumptions to provide estimates:

Constant return every month: Real markets vary; sequencing ignored.

Limitations

Be aware of these limitations when using this calculator:

Limitation: Returns are assumed constant; markets are volatile and sequenced

Limitation: Expense ratios, taxes and exit loads modeled only where entered

Limitation: Inflation adjustment shown only in the inflation mode

Limitation: Past performance does not predict future returns

Frequently Asked Questions

Answers to common questions about this calculator.

Why is effective CAGR below the assumed return?

Because later SIP instalments spend less time compounding — XIRR captures this; lump-sum CAGR does not.

Who uses the mutual fund return calculator?

It is used by investors comparing mutual fund options, by advisers checking a quote before a client commits, and by planners sizing contributions for a goal. It sits in the Mutual Funds group of the ETFs & Mutual Funds section of Atlascalcs.

How accurate is the mutual fund return calculator?

Every figure follows directly from the inputs using standard fund mathematics, so it is accurate to the quality of the values you enter. NAV rounding, actual SIP dates and changing expense ratios explain small gaps versus statements.

How current are the returns used here?

The calculator uses the return you enter. Update it to the fund factsheet trailing CAGR/XIRR or your own conservative assumption. Costs and tax slabs follow the conventions in the references.

Does rounding change the results?

Math runs at full precision; display rounds only. AMCs round NAVs to 4 decimals, so expect paise-level differences.

SIP or lump sum — which is better?

Lump sums maximize time invested and win in rising markets; SIPs average cost and enforce discipline. With cash available, staged deployment (STP over 6–12 months) splits the difference.

What should I have ready before investing?

Monthly budget, horizon, expected return grounded in benchmark history, expense ratios, exit-load windows and your tax slab. With those, every figure here ties to a fund document.

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Related Guides

Deepen your understanding with these educational resources.

Mutual funds vs ETFs

How costs, tracking and trading style differ.

Understanding expense ratios

Reading the hidden annual cost inside every fund.

Dollar-cost averaging explained

Why fixed monthly contributions beat lump-sum timing for most savers.

Glossary

Technical terms used in mortgage calculations explained in plain language.

SIP (Systematic Investment Plan): Fixed amount invested at regular intervals, averaging purchase cost over market cycles.
Lump Sum: One-time investment maximizing time in the market.
CAGR: Compound annual growth rate: the steady rate turning start value into end value over the period.
XIRR: Extended internal rate of return: annualized return of irregular dated cash flows like SIPs.

Authoritative References

Trusted sources and standards referenced by this calculator.

SEC — Mutual Funds and ETFs FINRA Fund Analyzer AMFI India — SIP resources Morningstar — Fund methodology Investopedia — IRR/XIRR

Applicable Standards

SIP future value with month-start timing and monthly compoundingCAGR geometric annualization; XIRR solved numerically to full precisionExpense drag as (r − expense) re-projection over the same horizonMoney rounded for display only; all calculations run at full precision

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Page Information

Last Updated:

2026-09-22

Version:

2.0.0

References:

License:

Free to use for educational and professional purposes.