SIP calculator guide
What is a SIP Calculator?
A SIP Calculator estimates how a fixed amount invested every month could grow over a chosen period at an assumed annual return. You enter the monthly investment, expected return rate and time period. The tool shows the total amount invested, estimated returns and projected future value using a standard compound-growth formula.
It does not predict actual mutual fund performance. Markets move up and down; the result only shows what the maths looks like under the assumptions you type in.
What this 5-in-1 calculator can do
This page combines five related modes so you can compare common investing and withdrawal questions in one place:
- SIP — regular monthly investment growth
- Lumpsum — one-time investment growth
- Step-up SIP — monthly SIP that increases by a fixed percentage each year
- SIP vs Lumpsum — side-by-side comparison for the same period and assumed return
- SWP — systematic withdrawal from a starting corpus
Tip: Change only one input at a time (amount, rate or years). That makes it easier to see which assumption moves the result the most.
How to use the SIP Calculator
- Select the mode you need (SIP, Lumpsum, Step-up, SIP vs Lumpsum, or SWP).
- Enter the monthly investment or lumpsum amount in rupees.
- Enter an expected annual return (%) — this is an assumption, not a guarantee.
- Enter the time period in years.
- For Step-up SIP, enter the annual increase percentage (for example 5% or 10%).
- For SWP, enter the corpus and the monthly withdrawal amount.
- Read the invested amount, estimated returns and total value. Then test a lower return rate to see a more conservative scenario.
Illustrative examples (for understanding only)
The figures below use an assumed 12% annual return. Real mutual fund returns can be higher or lower. These are mathematical illustrations, not forecasts.
Mode
Input
Years
Total invested (approx.)
Est. value @ 12% p.a.*
Regular SIP
₹5,000 / month
10
₹6,00,000
≈ ₹11.6 lakh
Step-up SIP
₹5,000 + 10% yearly
10
≈ ₹9.6 lakh
≈ ₹16.6 lakh
Lumpsum
₹1,00,000 once
10
₹1,00,000
≈ ₹3.1 lakh
Regular SIP
₹10,000 / month
15
₹18,00,000
≈ ₹50 lakh
*Rounded illustrations. Run the same inputs in the calculator above for the exact formula output. Try 8% or 10% as well so you are not planning only on the higher assumption.
SIP formula used
For a regular monthly SIP, future value is commonly estimated as:
M = P × [((1 + i)n − 1) / i] × (1 + i)
- M — estimated future value
- P — monthly investment amount
- i — monthly rate (annual rate ÷ 12 ÷ 100)
- n — total number of months (years × 12)
Lumpsum uses compound interest: A = P × (1 + r/100)t, where r is the annual rate and t is years. Step-up and SWP modes extend these ideas with yearly increases or periodic withdrawals. The on-page tool applies the maths for the mode you select.
How to read the result
- Invested amount — money you put in (contributions only).
- Est. returns — difference between projected value and invested amount under your assumed rate.
- Total value — projected corpus at the end of the period.
If the number looks large, ask: what happens at a lower return? What if I invest for fewer years? What if I increase the SIP by a small step each year? Those comparisons are more useful than a single optimistic figure.
Planning habit: Match the monthly SIP to an amount you can continue in ordinary months, not only in a best-case month. Consistency usually matters more than finding a “perfect” rate assumption.
SIP vs lumpsum — when to compare
Use SIP vs Lumpsum mode when you have a choice between investing gradually and investing a surplus at once. SIP spreads purchases over time. Lumpsum puts the full amount to work earlier under the same assumed rate. Neither mode removes market risk; they only show different contribution patterns.
Step-up SIP in plain terms
A step-up SIP increases the monthly amount once a year by a percentage you choose (for example 10%). It is useful when you expect income to rise and want contributions to rise in steps. The calculator shows how that path can differ from a flat SIP over the same years—still under an assumed return.
SWP — withdrawals from a corpus
SWP mode estimates remaining balance and total withdrawals when you take a fixed monthly amount from a starting corpus. Withdrawal rate, return assumption and time horizon all matter. A high withdrawal with a low assumed return can deplete the corpus faster than the headline monthly income suggests.
Frequently asked questions
Is the SIP calculator result guaranteed?
No. The result is a mathematical estimate based on the rate and period you enter. Mutual fund investments are subject to market risk. Actual value can be higher or lower.
What return rate should I enter?
There is no single correct rate. Many people test more than one assumption (for example a moderate rate and a lower rate) instead of relying on only an optimistic number. Past returns do not guarantee future returns.
What is the minimum amount for a SIP?
It depends on the fund and platform. Many mutual funds allow SIPs starting from a few hundred rupees per month. Confirm the minimum on the fund’s scheme documents or your investment platform.
Can I stop or change my SIP later?
In most cases yes—you can pause, stop or change the amount through your platform, subject to their process and the scheme rules. The calculator does not manage live SIPs; it only estimates scenarios.
Is step-up SIP better than a normal SIP?
A step-up SIP can build a larger corpus if you actually increase contributions as planned. It is not automatically “better”; it only works if the higher amounts stay affordable. Compare both modes with the same starting amount and years.
How is SIP different from mutual funds?
A mutual fund is the product you invest in. SIP is a method of investing a fixed amount at regular intervals into that fund. You can also invest in a mutual fund as a lumpsum.
Does this calculator include taxes or expense ratios?
Typical SIP illustrations use a simple assumed return and do not subtract tax, exit load or fund expenses line by line. Net amounts you receive can differ after costs and tax rules applicable to you.
Should I use SIP for short-term goals?
SIPs are often used for medium- to long-term goals because market-linked returns can swing over short periods. For near-term needs, many people prefer lower-volatility options after considering their own timeline and risk comfort.
Related calculators
Use these tools together when you are building a fuller money picture:
CAGR Calculator
Compound Interest Calculator
PPF Calculator
FD Calculator
Inflation Calculator
Retirement Planning Calculator
NPS Calculator
EMI Calculator
Related guides on Harshonomics
Before You Start a ₹10,000 SIP
Personal Finance Calculator Guide
Wealth Creation Strategy in India
How to Beat Inflation in 2026
SIP Calculator Guide (article)
Quick checklist before you invest
- Emergency money set aside separately from equity SIPs
- High-interest debt considered before aggressive investing
- SIP amount tested at more than one assumed return
- Goal timeline written down (years matter as much as amount)
- Scheme documents and costs reviewed on the official fund side
Disclaimer: This SIP calculator and the content on this page are for education and mathematical estimation only. They are not financial, investment or tax advice, and not a recommendation to buy or sell any mutual fund or security. Results depend on the assumptions you enter. Mutual fund investments are subject to market risks. Read all scheme-related documents carefully. Past performance does not guarantee future results. Harshonomics is not a SEBI-registered Investment Adviser. Verify important details with official sources or a qualified professional before deciding.
SIP calculator guide
What is a SIP Calculator?
A SIP Calculator estimates how a fixed amount invested every month could grow over a chosen period at an assumed annual return. You enter the monthly investment, expected return rate and time period. The tool shows the total amount invested, estimated returns and projected future value using a standard compound-growth formula.
It does not predict actual mutual fund performance. Markets move up and down; the result only shows what the maths looks like under the assumptions you type in.
What this 5-in-1 calculator can do
This page combines five related modes so you can compare common investing and withdrawal questions in one place:
- SIP — regular monthly investment growth
- Lumpsum — one-time investment growth
- Step-up SIP — monthly SIP that increases by a fixed percentage each year
- SIP vs Lumpsum — side-by-side comparison for the same period and assumed return
- SWP — systematic withdrawal from a starting corpus
Tip: Change only one input at a time (amount, rate or years). That makes it easier to see which assumption moves the result the most.
How to use the SIP Calculator
- Select the mode you need (SIP, Lumpsum, Step-up, SIP vs Lumpsum, or SWP).
- Enter the monthly investment or lumpsum amount in rupees.
- Enter an expected annual return (%) — this is an assumption, not a guarantee.
- Enter the time period in years.
- For Step-up SIP, enter the annual increase percentage (for example 5% or 10%).
- For SWP, enter the corpus and the monthly withdrawal amount.
- Read the invested amount, estimated returns and total value. Then test a lower return rate to see a more conservative scenario.
Illustrative examples (for understanding only)
The figures below use an assumed 12% annual return. Real mutual fund returns can be higher or lower. These are mathematical illustrations, not forecasts.
| Mode | Input | Years | Total invested (approx.) | Est. value @ 12% p.a.* |
|---|---|---|---|---|
| Regular SIP | ₹5,000 / month | 10 | ₹6,00,000 | ≈ ₹11.6 lakh |
| Step-up SIP | ₹5,000 + 10% yearly | 10 | ≈ ₹9.6 lakh | ≈ ₹16.6 lakh |
| Lumpsum | ₹1,00,000 once | 10 | ₹1,00,000 | ≈ ₹3.1 lakh |
| Regular SIP | ₹10,000 / month | 15 | ₹18,00,000 | ≈ ₹50 lakh |
*Rounded illustrations. Run the same inputs in the calculator above for the exact formula output. Try 8% or 10% as well so you are not planning only on the higher assumption.
SIP formula used
For a regular monthly SIP, future value is commonly estimated as:
M = P × [((1 + i)n − 1) / i] × (1 + i)
- M — estimated future value
- P — monthly investment amount
- i — monthly rate (annual rate ÷ 12 ÷ 100)
- n — total number of months (years × 12)
Lumpsum uses compound interest: A = P × (1 + r/100)t, where r is the annual rate and t is years. Step-up and SWP modes extend these ideas with yearly increases or periodic withdrawals. The on-page tool applies the maths for the mode you select.
How to read the result
- Invested amount — money you put in (contributions only).
- Est. returns — difference between projected value and invested amount under your assumed rate.
- Total value — projected corpus at the end of the period.
If the number looks large, ask: what happens at a lower return? What if I invest for fewer years? What if I increase the SIP by a small step each year? Those comparisons are more useful than a single optimistic figure.
Planning habit: Match the monthly SIP to an amount you can continue in ordinary months, not only in a best-case month. Consistency usually matters more than finding a “perfect” rate assumption.
SIP vs lumpsum — when to compare
Use SIP vs Lumpsum mode when you have a choice between investing gradually and investing a surplus at once. SIP spreads purchases over time. Lumpsum puts the full amount to work earlier under the same assumed rate. Neither mode removes market risk; they only show different contribution patterns.
Step-up SIP in plain terms
A step-up SIP increases the monthly amount once a year by a percentage you choose (for example 10%). It is useful when you expect income to rise and want contributions to rise in steps. The calculator shows how that path can differ from a flat SIP over the same years—still under an assumed return.
SWP — withdrawals from a corpus
SWP mode estimates remaining balance and total withdrawals when you take a fixed monthly amount from a starting corpus. Withdrawal rate, return assumption and time horizon all matter. A high withdrawal with a low assumed return can deplete the corpus faster than the headline monthly income suggests.
Frequently asked questions
Is the SIP calculator result guaranteed?
No. The result is a mathematical estimate based on the rate and period you enter. Mutual fund investments are subject to market risk. Actual value can be higher or lower.
What return rate should I enter?
There is no single correct rate. Many people test more than one assumption (for example a moderate rate and a lower rate) instead of relying on only an optimistic number. Past returns do not guarantee future returns.
What is the minimum amount for a SIP?
It depends on the fund and platform. Many mutual funds allow SIPs starting from a few hundred rupees per month. Confirm the minimum on the fund’s scheme documents or your investment platform.
Can I stop or change my SIP later?
In most cases yes—you can pause, stop or change the amount through your platform, subject to their process and the scheme rules. The calculator does not manage live SIPs; it only estimates scenarios.
Is step-up SIP better than a normal SIP?
A step-up SIP can build a larger corpus if you actually increase contributions as planned. It is not automatically “better”; it only works if the higher amounts stay affordable. Compare both modes with the same starting amount and years.
How is SIP different from mutual funds?
A mutual fund is the product you invest in. SIP is a method of investing a fixed amount at regular intervals into that fund. You can also invest in a mutual fund as a lumpsum.
Does this calculator include taxes or expense ratios?
Typical SIP illustrations use a simple assumed return and do not subtract tax, exit load or fund expenses line by line. Net amounts you receive can differ after costs and tax rules applicable to you.
Should I use SIP for short-term goals?
SIPs are often used for medium- to long-term goals because market-linked returns can swing over short periods. For near-term needs, many people prefer lower-volatility options after considering their own timeline and risk comfort.
Related calculators
Use these tools together when you are building a fuller money picture:
Related guides on Harshonomics
Quick checklist before you invest
- Emergency money set aside separately from equity SIPs
- High-interest debt considered before aggressive investing
- SIP amount tested at more than one assumed return
- Goal timeline written down (years matter as much as amount)
- Scheme documents and costs reviewed on the official fund side
Disclaimer: This SIP calculator and the content on this page are for education and mathematical estimation only. They are not financial, investment or tax advice, and not a recommendation to buy or sell any mutual fund or security. Results depend on the assumptions you enter. Mutual fund investments are subject to market risks. Read all scheme-related documents carefully. Past performance does not guarantee future results. Harshonomics is not a SEBI-registered Investment Adviser. Verify important details with official sources or a qualified professional before deciding.