SIP Calculator
Calculate your Systematic Investment Plan returns with lump sum and regular deposits.
What is the SIP Calculator?
A Systematic Investment Plan (SIP) is an investment strategy where you invest a fixed amount of money at regular intervals — typically monthly — into a mutual fund, index fund, or similar financial instrument. SIP is one of the most disciplined and effective ways to build long-term wealth.
Instead of investing a large lump sum all at once, SIP allows you to spread your investment over time, benefiting from rupee/dollar cost averaging and the power of compounding. This means you buy more units when prices are low and fewer when prices are high, averaging out the cost over time.
The SIP Calculator helps you estimate how much your regular investments will grow over a given term at an expected rate of return. You can optionally include a one-time lump sum deposit alongside your recurring contributions.
Practical Examples & Reference Guide
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.
In-Depth Technical Guide
How SIP Returns Are Calculated
The SIP Calculator uses the future value of an annuity formula combined with compound interest for any lump sum:
For the lump sum component:
$$FV_{lump} = P \times (1 + r)^n$$
For the regular SIP component (monthly deposits):
$$FV_{SIP} = D \times \frac{(1 + r)^n - 1}{r}$$
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
The total maturity value is: FV = FV(lump) + FV(SIP)
Why SIP Works: The Power of Compounding
SIP leverages compound interest — you earn returns not just on your invested capital, but also on the returns already earned. Over long periods, this creates an exponential growth curve.
For example, investing $500 per month at 12% annual return:
- After 10 years: You invest $60,000 and it grows to ~$115,510
- After 20 years: You invest $120,000 and it grows to ~$449,580
- After 30 years: You invest $180,000 and it grows to ~$1,764,380
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.