SIP Calculator
Work out what a monthly SIP turns into. Set your instalment, the return you expect and how long you will stay invested, and see the corpus split into the money you put in and the money compounding earned for you.
Corpus after 10 years
₹23.23 L
₹23,23,391
Growth
1.94×
- Invested amount₹12.00 L52%
- Estimated returns₹11.23 L48%
You invest
₹12.00 L
120 instalments
You gain
₹11.23 L
94% of capital
Worth today
₹12.97 L
After 6% inflation
Monthly
₹10,000
Level SIP
How the corpus builds up
The gap between the two lines is compounding. It stays narrow for years, then widens sharply — which is why tenure matters more than instalment size.
Not everything belongs in equity
A SIP builds the growth half of a portfolio. Pair it with fixed-income you can actually count on — FDs from 50+ issuers and listed corporate bonds, both on Finzace.
What is a SIP calculator?
A SIP calculator estimates the maturity value of a Systematic Investment Plan — a fixed amount invested on the same date every month. It answers the question that actually matters when you set up a mandate: if I keep this going for the next ten or twenty years, what am I likely to end up with?
The maths is an annuity. Each instalment is invested at a different time, so each one compounds for a different number of months: the first instalment in a 10-year SIP compounds for 120 months, the last one for a single month. Adding up 120 separately-compounded amounts by hand is tedious and error-prone, which is the whole reason this tool exists.
One caveat worth naming up front. A SIP is a way of investing, not an asset class. The return you type in is an assumption, not a promise — an equity fund can return 14% over one decade and 7% over the next. Treat the output as a planning range, not a number to bank on.
SIP formula: how the maturity amount is calculated
This calculator treats instalments as paid at the start of each month — an annuity due — because that is how an AMC actually debits a mandate. That is worth one extra month of growth on every instalment compared with the end-of-month convention.
FV = P × [ ((1 + i)^n − 1) / i ] × (1 + i)
- FV
- Maturity value — the corpus at the end of the tenure
- P
- Monthly instalment (SIP amount)
- i
- Monthly rate of return, i.e. the annual rate ÷ 12 ÷ 100
- n
- Total number of instalments (years × 12)
Worked example — ₹10,000 a month for 10 years at 12% p.a.
- i = 12 ÷ 12 ÷ 100 = 0.01
- n = 10 × 12 = 120
- FV = 10,000 × [ (1.01^120 − 1) / 0.01 ] × 1.01
- FV = 10,000 × 230.04 × 1.01
Maturity value ≈ ₹23,23,391 on ₹12,00,000 invested
How to use the Finzace SIP calculator
- 1Enter the amount you can invest every month. Start with what you can sustain in a bad month, not a good one — a SIP you pause defeats the point.
- 2Set the expected annual return. Equity funds have historically averaged 11–14% over long periods; debt funds and hybrid funds sit lower. Being conservative here costs you nothing.
- 3Choose how many years you will stay invested. Drag this one slider back and forth before you touch anything else — tenure moves the result more than any other input.
- 4Add an annual step-up if you expect your income to rise. A 10% step-up on a ₹10,000 SIP roughly doubles the corpus over 20 years.
- 5Set an inflation assumption to see what the corpus is worth in today's rupees. ₹1 crore in 2046 is not ₹1 crore.
Why use a SIP calculator before you start
What ₹10,000 a month becomes at 12% p.a.
The single most useful thing a SIP calculator teaches is that the curve is not a straight line. Compare the 5-year row with the 25-year row below: the instalment is identical, the tenure is five times longer, and the corpus is over twenty times larger.
| Tenure | Total invested | Estimated corpus | Estimated gain |
|---|---|---|---|
| 5 years | ₹6,00,000 | ₹8,25,000 | ₹2,25,000 |
| 10 years | ₹12,00,000 | ₹23,23,000 | ₹11,23,000 |
| 15 years | ₹18,00,000 | ₹50,46,000 | ₹32,46,000 |
| 20 years | ₹24,00,000 | ₹99,91,000 | ₹75,91,000 |
| 25 years | ₹30,00,000 | ₹1,89,76,000 | ₹1,59,76,000 |
| 30 years | ₹36,00,000 | ₹3,52,99,000 | ₹3,16,99,000 |
SIP or lumpsum — which suits your money?
If you have a sum sitting in your account today, a lumpsum investment gets every rupee compounding immediately, and over a long horizon that usually wins. If your money arrives as a salary, a SIP is the only realistic option — and it brings rupee-cost averaging, buying more units when markets fall.
In practice most people run both: a SIP against monthly income, and a lumpsum whenever a bonus or maturity payout lands. Run the numbers on both before deciding.
- SIP suits regular income, volatile assets and long horizons.
- Lumpsum suits money already in hand, especially in debt and fixed-income instruments where timing risk is limited.
- A step-up SIP is the middle path: it grows with your income without needing a new decision each year.
SIP calculator — frequently asked questions
Is the return shown by a SIP calculator guaranteed?
What return rate should I assume for a SIP?
Does this calculator account for taxes and expense ratios?
What is a step-up SIP and is it worth it?
Can I stop or pause a SIP?
How is a SIP different from a recurring deposit?
What does the inflation-adjusted figure mean?
The figures shown are illustrative projections generated from the inputs you enter, not a guarantee of returns. Market-linked investments are subject to market risk; actual returns will vary with market conditions, fund performance, expense ratios, exit loads and applicable taxes. Read all scheme-related documents carefully before investing.
Other Finzace calculators
Plan the rest of your portfolio with the same numbers.
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- Retirement CalculatorSize the corpus your retirement actually needs, then the monthly investment that builds it in time.
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- YTM CalculatorDetermine the yield to maturity on corporate and government bonds before you commit capital.