SIP Calculator
Calculate your Systematic Investment Plan returns with lump sum and regular deposits.
What Is a SIP (Systematic Investment Plan)?
A SIP is an investment method where you invest a fixed amount at regular intervals (usually monthly) into a mutual fund or similar investment vehicle. It automates your investing and helps build wealth through disciplined, consistent contributions over time.
SIP Returns by Time Horizon
Here is a comparison showing how a ₹500/month SIP grows over various time periods at a 12% annual expected return:
| Investment Term | Total Invested | Estimated Returns | Maturity Value |
|---|---|---|---|
| 5 Years | ₹30,000 | ₹11,616 | ₹41,616 |
| 10 Years | ₹60,000 | ₹55,510 | ₹115,510 |
| 15 Years | ₹90,000 | ₹151,014 | ₹241,014 |
| 20 Years | ₹120,000 | ₹329,580 | ₹449,580 |
| 25 Years | ₹150,000 | ₹640,048 | ₹790,048 |
As you can see, the power of compounding dramatically accelerates your wealth over longer investment horizons. Starting early is the single most impactful decision you can make.
How SIP Returns Are Calculated
The SIP Calculator uses the future value of an annuity formula combined with compound interest for any lump sum:
SIP Formula (Future Value of Annuity)
$$FV_{SIP} = D \times \frac{(1 + r)^n - 1}{r}$$
Lump Sum + SIP Combined Formula
For the lump sum component:
$$FV_{lump} = P \times (1 + r)^n$$
The total maturity value is: FV = FV(lump) + FV(SIP)
Where:
- P = Lump Sum Deposit Amount (one-time initial investment)
- D = Regular Deposit Amount (recurring contribution per period)
- r = Periodic rate of return (annual rate ÷ 12 for monthly)
- n = Total number of compounding periods
SIP vs Lump Sum Investing
| Factor | SIP | Lump Sum |
|---|---|---|
| Investment style | Fixed amount at regular intervals | One-time full amount upfront |
| Market timing risk | Lower — averaged across market ups and downs | Higher — full exposure at entry price |
| Best suited for | Regular income earners, long-term disciplined investing | Investors with a large amount ready to deploy, or strong conviction markets will rise |
| Behavioral discipline | Built-in, automated | Requires manual timing decisions |
| Historical outperformance | Tends to reduce downside risk in volatile/falling markets | Tends to outperform in consistently rising markets |
Neither approach is universally better — SIP's main advantage is reducing the risk of poor timing and enforcing consistency, while lump sum can outperform when markets are already positioned to rise and the money would otherwise sit uninvested.
Step Up SIP: Increasing Your Contribution Over Time
A Step Up (or "top-up") SIP increases your regular contribution amount by a fixed percentage or amount at set intervals, typically annually, in line with income growth. This calculator's optional "Increment" field lets you model this: instead of investing a flat amount for the entire term, your contribution grows year over year, which meaningfully increases the final maturity value compared to a static SIP of the same starting amount — since larger contributions in later years still have time left to compound before the end of the term.
For example, a SIP that starts at ₹500/month and increases 10% annually will accumulate a noticeably larger corpus over 20 years than a flat ₹500/month SIP, even though the early-year contributions are identical, simply because the total amount invested over time is higher while still benefiting from long-term compounding.
Choosing an Expected Return Rate
The expected return rate depends on your investment type. Equity mutual funds have historically returned 10-15% CAGR over long periods. Debt funds typically return 6-8%. Conservative investors should use lower estimates (8-10%), while aggressive investors might use 12-15%. Always use realistic expectations.
SIP vs XIRR: Measuring Your Actual Returns
This calculator projects your SIP's future value using a single fixed expected return rate, applied consistently across the entire term. In reality, mutual fund returns fluctuate year to year, and each of your monthly SIP contributions is invested at a different point in time and market condition. Once you actually want to measure your realized return on an ongoing or completed SIP — factoring in the specific date and amount of every contribution — XIRR is the correct metric rather than a flat assumed rate. Use this calculator for forward-looking planning and projections; use an XIRR calculation for after-the-fact performance measurement.
Tips for Maximizing SIP Returns
- Start Early: Even small amounts invested early can outperform larger amounts invested later due to compounding.
- Stay Consistent: Don't stop your SIP during market downturns — this is when you buy more units at lower prices.
- Increase Contributions: Try to increase your SIP amount annually as your income grows.
- Choose the Right Fund: Select funds that align with your risk tolerance and investment horizon.
Frequently Asked Questions (FAQs)
What is a SIP (Systematic Investment Plan)?
A SIP is an investment method where you invest a fixed amount at regular intervals (usually monthly) into a mutual fund or similar investment vehicle. It automates your investing and helps build wealth through disciplined, consistent contributions over time.
What is the difference between SIP and lump sum investing?
In lump sum investing, you invest a large amount all at once. In SIP, you invest smaller amounts regularly over time. SIP reduces the risk of investing at a market peak through dollar/rupee cost averaging, while lump sum investing may yield higher returns in consistently rising markets.
Can I use both a lump sum and regular deposits together?
Yes! Our SIP Calculator allows you to combine a one-time lump sum deposit with regular monthly or yearly contributions. This is a common strategy where you invest an initial amount and then continue adding to it systematically.
What expected return rate should I use?
The expected return rate depends on your investment type. Equity mutual funds have historically returned 10-15% CAGR over long periods. Debt funds typically return 6-8%. Conservative investors should use lower estimates (8-10%), while aggressive investors might use 12-15%. Always use realistic expectations.
Is the SIP Calculator result guaranteed?
No, the calculator provides an estimate based on a fixed expected return rate. Actual returns from mutual funds and other investments vary based on market conditions. The calculator is a planning tool to help you understand potential outcomes, not a guarantee of returns.
What is a Step Up SIP and how does it affect returns?
A Step Up SIP increases your monthly contribution by a set percentage or amount at regular intervals (usually annually), which results in a higher total maturity value compared to a flat SIP of the same starting amount, since later contributions are larger while still benefiting from long-term compounding.
Should I choose Beginning of Period or End of Period contribution timing?
Beginning of Period assumes each contribution is invested at the start of the period and has slightly longer to compound, resulting in a marginally higher projected value than End of Period, which assumes the contribution is made after the period has already elapsed. Match this setting to your actual SIP debit date relative to your fund's NAV cycle for the most accurate projection.