SIP Calculator: Plan Your Investment Growth

How to use this SIP calculator

Choose Monthly SIP to invest a fixed amount each month, Step-Up SIP to increase that amount once a year, or Lump Sum for a single investment at the start. Enter the amount, choose your timeline and adjust the assumed annual rate. The results update when you edit the active inputs.

This SIP calculator shows how much you contribute, your projected final value and the difference between the two. Try more than one return assumption, including zero or a negative rate. The default 12% is an illustration, not a forecast, promised return or recommendation.

Monthly SIP, step-up SIP and lump sum: what changes?

A monthly SIP spreads contributions over time. A step-up SIP increases the monthly contribution after every completed year. For example, starting at ₹5,000 with a 10% step-up means ₹5,500 per month in year two. A 0% step-up is identical to a fixed SIP under the same inputs.

The comparison shows both additional contributions and the projected difference in final value. A larger step-up result is partly the result of putting in more money. It should not be read as a higher investment return for the same total contribution.

A lump sum invests the whole amount at the start, giving it a different time in the market. Do not compare a lump sum with a monthly plan as if their cash flows were identical. Choose the mode that matches how the money would actually be invested.

SIP calculator example: ₹5,000 a month for 10 years

Using the default 12% annual rate divided into monthly rates, a ₹5,000 contribution at the end of each month totals ₹6,00,000 over ten years. Its projected final value is approximately ₹11,50,193. The projected gain is about ₹5,50,193 before taxes and separately charged fees.

With a 0% assumed rate, the same monthly plan finishes at ₹6,00,000. With a negative rate, the final value can be below the total contributed. Real investments do not produce the same return every month, so the path and outcome can differ substantially from this illustration.

How the investment calculation works

For consistency with this tool’s original method, the entered annual rate is divided by 12 to obtain a monthly rate. All SIP contributions occur at month-end. For a fixed SIP, the formula is P × [(1 + r)ⁿ − 1] ÷ r, where P is the monthly amount, r is the entered annual percentage divided by 1,200, and n is the number of months. At a zero rate, the result is P × n.

A lump sum uses P × (1 + r)ⁿ. The step-up mode applies the same monthly calculation while increasing contributions once a year. Calculations retain precision internally and round only the displayed figures.

This rate convention is not an effective annual CAGR conversion. For example, 12% divided into 1% monthly periods implies about 12.68% compounded over a year. Calculators using an effective annual rate or beginning-of-month contributions will show different results.

What inflation-adjusted value tells you

The inflation toggle divides the final value by 1.06 raised to the number of years. It estimates the purchasing power of the final amount in today’s rupees at an illustrative 6% annual inflation rate. Your personal spending basket may experience a different rate.

The contribution total and gain or loss remain nominal figures. The inflation-adjusted final value is shown separately; subtracting nominal contributions from it would mix amounts measured at different points in time. It is not an inflation-adjusted investment return.

Five checks before setting up a SIP

1. Check the monthly budget. Choose an amount that fits alongside bills, borrowing costs and accessible cash for unexpected expenses.
2. Match the investment to the goal. Consider when you need the money and how much uncertainty you can tolerate.
3. Treat a step-up as a commitment. Check the contribution required in later years, particularly if you expect an income change or career break.
4. Review the underlying fund. A SIP is a payment method. Its risk depends on the investment receiving your money.
5. Review when circumstances change. Your income, goal or capacity to absorb losses may change. A fixed contribution is not a rule you must follow regardless of your situation.

Understanding fund types before you invest

Equity funds invest mainly in shares; debt funds invest in debt and money-market instruments; hybrid funds combine asset types. These labels alone do not establish suitability or safety. Read the scheme documents and risk disclosures. SEBI’s investor education website provides a starting point for understanding investments and risk.

Index funds seek to follow an index, but their value can still fall and their results can differ from the index. Debt and liquid funds are not bank deposits or guaranteed-return products. Avoid assuming any category will always beat a fixed deposit after tax. Consider the specific product’s risk, costs and access to money.

Frequently asked questions

Does a SIP guarantee a profit?

No. A regular payment schedule does not guarantee a positive return or prevent a loss. The projection assumes a smooth rate for illustration; actual market values fluctuate.

What rate should I enter?

Use the rate as a scenario input. Compare lower, zero and negative outcomes as well as a positive case. Do not choose an optimistic figure solely because it reaches your target. This tool does not estimate the future return of a particular fund.

Why does a zero step-up match a regular SIP?

A zero step-up leaves each monthly payment unchanged. The same amount, duration, rate and payment timing therefore produce the same projected result.

Are taxes and charges included?

No separate taxes, exit loads or fees are deducted. If your assumed rate is already after ongoing fund expenses, avoid deducting those same expenses twice when comparing results.

How do I work backwards from a target amount?

Use the goal-based savings planner to explore a monthly contribution for a target. If you are also planning repayments, the loan and EMI tool can help model that separate monthly commitment.