SIP Calculator — Estimate Mutual Fund Returns
Plan your wealth with monthly SIP investments. See how small, regular contributions grow into a large corpus over time.
Investment Details
Maturity Amount
₹23.23 L
93.6% total returns
Total Invested
₹12.00 L
Wealth Gained
₹11.23 L
Monthly SIP
₹10,000
Maturity Amount
₹23.23 L
Growth Over Time
What is a SIP?
A Systematic Investment Plan (SIP) is a method of investing a fixed amount in a mutual fund at regular intervals — typically monthly. Instead of investing a lump sum, you invest small amounts consistently over time. SIP leverages the power of rupee cost averaging: you buy more units when the market is low and fewer when it is high, lowering your average cost per unit over time. Combined with compound interest, even modest monthly investments can grow into substantial wealth over 10–20 years. SIPs are available for equity, debt, hybrid, and index mutual funds — making them suitable for every type of investor and financial goal.
How to Use the RupeeMath SIP Calculator
- 1.Monthly Investment: Enter the amount you plan to invest each month (e.g., ₹5,000). Use the slider or type directly.
- 2.Expected Return Rate: Enter the annual return you expect from the mutual fund (e.g., 12% for equity funds). This is an estimate — actual returns vary.
- 3.Tenure: Select the number of years you plan to invest (e.g., 10 years). Longer tenure = more compounding = higher returns.
- 4.Read the results: The calculator instantly shows your Maturity Amount, Total Invested, and Wealth Gained — along with a year-by-year growth chart.
- 5.Experiment: Try different amounts and tenures to set your savings goals. Even increasing your SIP by ₹500/month can add lakhs to your final corpus.
SIP Formula Explained
The SIP maturity amount is calculated using the future value of an annuity formula:
- M — Maturity amount (total corpus at the end)
- P — Monthly SIP amount (e.g., ₹5,000)
- r — Monthly interest rate = Annual rate ÷ 12 ÷ 100 (e.g., 12% → 0.01)
- n — Total number of months (e.g., 10 years → 120 months)
Example: ₹5,000/month at 12% for 10 years → Maturity ≈ ₹11.6 lakh on an investment of ₹6 lakh. The remaining ₹5.6 lakh is pure compound growth.
The Power of Compounding in SIP
Compounding is the financial principle that makes SIP such a powerful wealth creation tool over long time horizons. When your investment earns returns, those returns are reinvested and begin earning their own returns. Over time, this creates an exponential growth curve that accelerates the longer you stay invested. The difference between a 15-year SIP and a 20-year SIP is not just 5 more years of contributions — it is 5 more years of the accumulated corpus earning compounding returns. A ₹10,000 monthly SIP at 12% for 15 years creates a corpus of approximately ₹50 lakh. Extend that by just 5 more years and the same SIP produces ₹1 crore — double the corpus for only 33% more contributions.
Starting early is the single most powerful lever in SIP investing, far more important than the amount you invest. Consider two investors: Priya starts a ₹5,000 SIP at age 25 and runs it for 30 years until retirement at 55. Raj starts a ₹10,000 SIP at age 35 and runs it for 20 years until the same age. At 12% returns, Priya accumulates approximately ₹1.76 crore while Raj accumulates ₹99.9 lakh — almost half as much, despite investing double the monthly amount. Priya invested ₹18 lakh in total (₹5,000 × 360 months) versus Raj's ₹24 lakh (₹10,000 × 240 months). The 10-year head start on compounding creates a wealth differential that cannot be compensated for by investing more money later.
A common mistake among first-time SIP investors is stopping the SIP when markets fall. This is actually the opposite of what works. During a market downturn, your fixed monthly SIP buys more mutual fund units at lower prices — this is the rupee cost averaging effect. When the market recovers, those cheaper units deliver a higher percentage gain. Investors who continue their SIPs through the 2020 Covid crash, the 2015 China slowdown correction, and the 2008 global financial crisis consistently earned better long-term returns than those who paused or exited. The SIP structure rewards patience and consistency — the time in the market, not timing the market, is what builds wealth over 10–20 year horizons.
SIP vs Fixed Deposit — Which is Better?
The SIP vs FD debate is one of the most common questions Indian investors face, and the honest answer is that they serve fundamentally different purposes. A Fixed Deposit is a guaranteed-return instrument where your principal is completely safe and the interest rate is locked in at the time of opening. If you open an FD at 7.5% for 5 years, you will receive exactly 7.5% per year, no more and no less. This predictability makes FDs ideal for capital preservation, emergency funds, and short-term financial goals where you cannot afford to lose money. The limitation is that FD returns, after accounting for income tax deducted at the applicable slab rate, often struggle to keep pace with India's inflation rate — meaning the real purchasing power of your FD corpus may actually decrease over time.
SIP in equity mutual funds operates at the opposite end of the spectrum. Returns are not guaranteed — the NAV of your fund will fluctuate daily with market conditions, and in any given year you might see a gain of 30% or a loss of 20%. However, over long investment horizons of 7 years or more, diversified equity mutual funds in India have historically delivered returns in the range of 12–15% per year. A ₹5,000 monthly SIP at 12% for 20 years creates a corpus of approximately ₹50 lakh, while the same ₹5,000 monthly FD at 7% over 20 years grows to approximately ₹30 lakh. The SIP investor ends up with 65% more wealth, but accepts the volatility of equity markets to achieve it.
The tax treatment is another major differentiator that advantages SIP for high-income earners. FD interest is added to your annual income and taxed at your full income tax slab rate — for someone in the 30% bracket, a 7.5% FD delivers an effective post-tax return of just 5.25%. Equity mutual fund gains, when held for more than one year, are taxed as Long Term Capital Gains (LTCG) at a flat 12.5% with the first ₹1.25 lakh per year completely exempt. This structural tax advantage means the post-tax return from equity SIPs is significantly higher than from FDs for investors in the 20–30% tax brackets. For short-term goals under 3 years, FDs remain the right choice — capital safety is paramount. For goals beyond 5 years, SIP in a diversified equity fund or balanced hybrid fund is almost always the better wealth-building choice.
How to Start a SIP in India
Starting a SIP in India has become remarkably simple and takes less than 15 minutes with a smartphone. The first step is completing your KYC (Know Your Customer) verification, which is now fully digital via Aadhaar-based e-KYC. You can complete this on any AMC (Asset Management Company) website or through direct investment platforms like Zerodha Coin, Groww, Kuvera, or Paytm Money. Once KYC is done, you choose the mutual fund scheme that matches your risk profile and investment goal — index funds are recommended for beginners, while more experienced investors might choose flexi-cap or mid-cap funds for higher long-term return potential.
After selecting the fund, you set the SIP amount (minimum ₹100–₹500 depending on the fund), choose the date of monthly deduction, and link your bank account for the auto-debit mandate. The money is automatically debited every month on the chosen date and units are allocated at the current NAV. You can manage, pause, or stop your SIP entirely through the same app at any time without any penalty for open-ended funds. For tax-saving ELSS funds, a 3-year lock-in applies to each instalment. Once set up, a SIP essentially runs on autopilot — the discipline of automated investing is itself one of its greatest advantages over manual monthly transfers or lump-sum investing.
Frequently Asked Questions
These calculations are for educational and informational purposes only. Please consult a qualified financial advisor before making any financial decisions.
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