SIP Calculator: What Will Your Monthly Investment Actually Be Worth?

A Systematic Investment Plan (SIP) lets you invest a fixed amount every month into a mutual fund — and over time, compounding turns those small amounts into serious wealth. But most SIP calculators online only tell you one number: the final corpus. That number can be misleading. Use the MoneyHulk SIP Calculator above to see your real returns — including what your corpus is actually worth after inflation, not just on paper.

Also try, Inflation Calculator

What Is a SIP?

A SIP (Systematic Investment Plan) is a method of investing a fixed amount regularly — usually monthly — into a mutual fund. It uses rupee cost averaging to reduce the impact of market volatility, and compound growth to build wealth over time. You can start a SIP with as little as ₹500 per month.

How Does a SIP Work? A Simple Explanation

When you start a SIP, a fixed amount is automatically debited from your bank account every month and invested in a mutual fund of your choice. The fund manager uses that money to buy units of the fund at the current NAV (Net Asset Value).

Here is what happens step by step:

1. Your bank auto-debits ₹5,000 on a fixed date each month.
2. The fund house buys mutual fund units at the current NAV.
3. When markets fall, your ₹5,000 buys more units. When markets rise, it buys fewer.
4. Over time, this averages out your cost per unit — called rupee cost averaging.
5. Your units grow in value as the fund performs, and compounding multiplies your returns.

What is Rupee Cost Averaging?

Rupee cost averaging means you automatically buy more units when prices are low and fewer when prices are high. Over a long period, this reduces your average cost per unit — and increases your overall return. It also removes the pressure of timing the market.

How to Use the MoneyHulk SIP Calculator

Our calculator has four inputs. Here is what each one means:

• Monthly SIP Amount: How much you invest each month. Start with what you can afford — even ₹1,000/month makes a difference over 15 years.
• Expected Return Rate: The annual return you expect from your mutual fund. Equity mutual funds have historically returned 10–14% p.a. over long periods. Use 12% as a conservative estimate.
• Investment Period: How many years you plan to stay invested. The longer, the better — compounding rewards patience.
• Inflation Rate: India’s average inflation is around 5–6% p.a. This is used to calculate your inflation-adjusted (real) corpus.

What Does the ‘Inflation-Adjusted Value’ Mean?

If your SIP grows to ₹50 lakhs in 20 years, that sounds great. But ₹50 lakhs in 2045 will not buy what ₹50 lakhs buys today — because of inflation. The inflation-adjusted value tells you what your corpus is worth in today’s purchasing power.

Example: A ₹50 lakh corpus in 20 years at 6% inflation is worth roughly ₹15.6 lakhs in today’s money. That is still excellent — but it helps you set realistic expectations and invest enough to meet your real goals.

SIP vs FD vs RD: Which Gives Better Returns?

Here is a quick comparison for someone investing ₹5,000 per month over 10 years:

Feature	SIP (Equity MF)	FD	RD
Returns	10–14% p.a.*	6–7.5% p.a.	6–7% p.a.
Tax Benefit	ELSS: ₹1.5L under 80C	No (TDS applicable)	No
Liquidity	High (3yr lock for ELSS)	Low (penalty on exit)	Moderate
Risk	Market risk	Low (insured up to ₹5L)	Low
Best For	Long-term wealth	Capital preservation	Short-term saving

*Equity mutual fund returns are market-linked and not guaranteed. Past performance is not indicative of future results.

What is a Step-Up SIP — and Why It Changes Everything

A step-up SIP means you increase your monthly investment by a fixed percentage every year — usually 10–15%. This matches your income growth and dramatically boosts your final corpus.

Scenario	Monthly SIP	Corpus in 20 yrs (12%)
Regular SIP	₹5,000 flat	₹49.96 L
Step-up SIP (10% yearly)	₹5,000 → grows every year	₹1.01 Cr
Step-up SIP (15% yearly)	₹5,000 → grows every year	₹1.49 Cr

The takeaway: A regular ₹5,000 SIP gives you ₹49.96 lakhs in 20 years. A 10% step-up turns that into over ₹1 crore — without any extra discipline, just an annual increase.

How Much SIP Do You Need to Reach Your Goal?

Work backwards from your goal. Here are some benchmarks at 12% annual returns:

• ₹1 Crore in 20 years → invest ₹10,000/month
• ₹50 Lakhs in 15 years → invest ₹10,500/month
• ₹25 Lakhs in 10 years → invest ₹14,500/month
• ₹1 Crore in 30 years → invest just ₹2,860/month

The earlier you start, the less you need to invest each month. Time is the most powerful variable in the SIP formula.

5 Tips to Get the Most Out of Your SIP

• Start early, even if small. A ₹1,000 SIP at 22 beats a ₹10,000 SIP at 35, thanks to compounding.
• Never pause or stop your SIP during market crashes. That is exactly when you are buying units cheap — stopping undoes the entire benefit of rupee cost averaging.
• Increase your SIP every year by 10%. Even a small annual step-up can double your final corpus.
• Choose the right fund for your goal. For 10+ year goals, diversified equity or index funds are ideal. For 3–5 years, use hybrid or debt funds.
• Use ELSS funds if you want tax savings. ELSS mutual funds qualify for ₹1.5 lakh deduction under Section 80C, with only a 3-year lock-in.

Common SIP Mistakes to Avoid

• Stopping SIP when markets fall: This is the single biggest mistake. Market dips are opportunities, not threats.
• Choosing a fund based only on past returns: Past performance does not guarantee future results. Look at consistency across 5–10 year periods.
• Ignoring expense ratio: A 1.5% expense ratio vs 0.5% can cost you lakhs over 20 years. Index funds typically have lower expense ratios.
• Not reviewing your portfolio: Review once a year — not to react to short-term noise, but to rebalance if your allocation has shifted.

Which Mutual Fund Should You Choose for Your SIP?

This depends on your goal, time horizon, and risk tolerance:

• Beginners with 10+ year horizon: Large-cap index funds (Nifty 50 or Sensex index funds). Low cost, diversified, low maintenance.
• Moderate risk, 7–10 year horizon: Flexi-cap or multi-cap funds. More diversification across company sizes.
• Tax saving + long-term growth: ELSS funds. Comes with a 3-year lock-in but qualifies for 80C deduction.
• Conservative investors: Hybrid or balanced advantage funds. Mix of equity and debt to reduce volatility.

Always check the fund’s 5-year and 10-year CAGR, expense ratio, and fund manager track record before investing. You can compare funds on SEBI-registered platforms like Groww, Zerodha Coin, or ET Money.

Frequently Asked Questions

Q: What is a good SIP amount for a beginner?

There is no minimum that is ‘too small.’ Start with whatever you can commit to consistently — even ₹500 or ₹1,000 per month. The key is to start now and increase your SIP as your income grows. A ₹1,000/month SIP started at 25 will outperform a ₹5,000/month SIP started at 35.

Q: Is SIP better than a fixed deposit (FD)?

For long-term goals (7+ years), SIP in equity mutual funds has historically given significantly better returns than FDs — often 12–14% vs 6–7% for FDs. However, SIP returns are market-linked and not guaranteed, while FD returns are fixed. For short-term goals or capital that you cannot afford to lose, FDs remain safer.

Q: Can I pause or stop a SIP anytime?

Yes. Unlike FDs, you can stop or pause a SIP anytime without penalty (except ELSS funds, which have a 3-year lock-in). However, stopping your SIP — especially during a market downturn — means you miss buying units at low prices, which reduces your long-term returns significantly.

Q: How is SIP taxed in India?

Equity mutual fund SIP returns are taxed based on the holding period of each instalment. Units held for more than 1 year attract Long-Term Capital Gains (LTCG) tax at 12.5% on gains above ₹1.25 lakh per year. Units sold before 1 year attract Short-Term Capital Gains (STCG) tax at 20%. ELSS fund gains after the 3-year lock-in are taxed as LTCG.

Q: What is the SIP formula used in the calculator?

The MoneyHulk SIP calculator uses the standard future value formula: M x ({[1 + i]^n – 1} / i) x (1 + i) — where M is the monthly SIP, i is the monthly interest rate (annual rate ÷ 12), and n is the total number of months. The inflation-adjusted value divides the result by (1 + inflation rate) raised to the power of years.

Q: Is SIP only for equity mutual funds?

No. You can start a SIP in debt funds, hybrid funds, gold funds, international funds, and even liquid funds. The type of fund determines your returns and risk. For long-term wealth building, equity SIPs tend to work best. For shorter goals or conservative investors, debt or hybrid SIPs are more appropriate.

Q: How does inflation affect my SIP returns?

Inflation reduces the purchasing power of your future corpus. For example, if your SIP grows to ₹1 crore in 25 years, but inflation averages 6% per year, that ₹1 crore will only have the purchasing power of about ₹23 lakhs in today’s money. This is why the MoneyHulk calculator shows you both the nominal corpus and the inflation-adjusted real value — so you can plan for what you actually need.

Conclusion: Start Your SIP Today

The best time to start a SIP was yesterday. The second best time is today. Use the MoneyHulk SIP calculator above to find the right monthly amount for your goal — and remember to check the inflation-adjusted value to plan realistically.

Start with any amount. Increase it every year. Stay invested through market ups and downs. And let compounding do the heavy lifting for you.

A good first step: pick a Nifty 50 index fund, set up a ₹2,000/month SIP today, and plan to increase it by 10% every April. That single habit — done consistently for 20 years — can build over ₹40 lakhs from just ₹2,000/month.

Disclaimer: This calculator and article are for educational purposes only. Mutual fund investments are subject to market risk. Please read all scheme-related documents carefully before investing. MoneyHulk is not a SEBI-registered investment advisor.