Two questions. One calculator for India. When will you become a Crorepati? Or how much monthly SIP do you need to get there by a specific year? Enter your savings, SIP amount and expected mutual fund return. Get your exact ₹1 Crore date and a visual milestone roadmap – ₹25L to ₹10 Crore.
Already have a target corpus? → FIRE Calculator | Plan your SIP step-up → Step-Up SIP Calculator
The real price of waiting before starting your SIP.
Year-by-year corpus. Milestone years highlighted.
| Year | Monthly SIP | Invested | Corpus | Returns |
|---|
The question crorepati kaise bane has a mathematical answer. Becoming a crorepati through systematic investing is not about timing the market, picking the right stock, or getting lucky. It is about starting early, staying consistent, and letting the power of compounding work for you. The Crorepati Calculator above does the math. This guide explains the why behind the numbers.
Compounding is the single most important concept in wealth creation. It means your returns earn returns – what the power of compounding actually does over decades. A ₹10,000/month SIP at 12% annual return after 10 years has ₹23.2 lakh – but only ₹12 lakh is what you invested. The remaining ₹11.2 lakh is compounding. After 20 years: corpus ₹99.9 lakh on ₹24 lakh invested. After 30 years: ₹3.5 crore on ₹36 lakh invested. Markets contributed ₹3.14 crore of that 3.5 crore. You contributed only ₹36 lakh.
The implications are profound. The last 10 years of a 30-year SIP generate more wealth than the first 20 years combined. This is why starting at 25 beats starting at 35 even if the later starter invests twice the amount. Time is the variable no money can substitute.
Popularised by financial planners, the 15-15-15 rule states: invest ₹15,000 per month in equity mutual funds for 15 years expecting 15% annual return, and you become a crorepati. The actual number: ₹1,00,27,601 – just over ₹1 crore. Total invested: ₹27 lakh. Markets contributed ₹73 lakh.
The rule is useful as a mental anchor, but 15% is an aggressive return assumption for long-term planning. At 12%: the same ₹15,000/month for 15 years gives ₹75.4 lakh – not yet a crore. You need either more time (18 years at 12%) or more monthly investment (₹20,000/month at 12% for 15 years = ₹1.00 crore). The 12-20-20 rule is more conservative and more realistic for most investors: ₹12,000/month at 12% for 20 years = ₹1.19 crore.
This rule describes the non-linear nature of compounding on a specific SIP. A ₹10,000/month SIP at 12% return:
The doubling time keeps shrinking because a larger base is compounding. This is why the early years feel slow and discouraging – the early investor who stays invested through that 8-year flat period unlocks the steep acceleration. Most investors quit in year 3 or 4, just before compounding starts to visibly accelerate.
Rupee cost averaging (RCA) is the mechanism that makes SIP more powerful than lump sum investing in volatile markets. When you invest ₹10,000 every month, you buy more mutual fund units when NAV is low and fewer when NAV is high. Over time, your average cost per unit is lower than the average NAV over the same period.
Example: NAV is ₹100 in January (you get 100 units). NAV falls to ₹80 in February (you get 125 units). NAV rises to ₹120 in March (you get 83 units). Total: ₹30,000 invested, 308 units at average cost ₹97.4 – lower than the simple average of ₹100. The market fluctuated 40 points, but you benefited from the dip automatically without timing anything. This is why the instruction from every financial expert is the same: never stop your SIP when markets fall. That is exactly when RCA is working hardest for you.
The single most common question after landing on a crorepati calculator: "How much do I need to invest per month?" The answer depends entirely on your current age and when you want to reach ₹1 crore. The table below assumes 12% annual return, no existing savings, and a flat SIP (no step-up).
| Current Age | Crorepati by 45 | Crorepati by 50 | Crorepati by 55 | Crorepati by 60 |
|---|---|---|---|---|
| Age 25 | ₹14,800/mo (20 yrs) | ₹5,900/mo (25 yrs) | ₹2,500/mo (30 yrs) | ₹1,100/mo (35 yrs) |
| Age 30 | ₹29,500/mo (15 yrs) | ₹14,800/mo (20 yrs) | ₹5,900/mo (25 yrs) | ₹2,500/mo (30 yrs) |
| Age 35 | ₹71,000/mo (10 yrs) | ₹29,500/mo (15 yrs) | ₹14,800/mo (20 yrs) | ₹5,900/mo (25 yrs) |
| Age 40 | Not realistic | ₹71,000/mo (10 yrs) | ₹29,500/mo (15 yrs) | ₹14,800/mo (20 yrs) |
12% annual return assumed. Flat SIP, no step-up, no existing savings. Use the Step-Up SIP Calculator to see how annual increments reduce the required monthly investment by 30-40%.
The table reveals the steep cost of delay – and how it compares to average net worth by age in India. A 25-year-old needs only ₹2,500/month to be a crorepati by 55. A 35-year-old needs ₹14,800/month for the same target age – six times more. This is not about discipline or willingness. It is pure mathematics – the exact calculation is in our cost of delay guide. Every year of delay increases the required SIP exponentially because compounding has one less year to work.
A step-up SIP (also called a top-up SIP) automatically increases your monthly investment by a fixed percentage every year. The typical step-up is 10%, matching the average Indian salaried worker's annual increment. The impact on the Crorepati timeline is dramatic.
A ₹10,000/month flat SIP at 12% reaches ₹1 crore in approximately 20 years. The same ₹10,000 starting SIP with 10% annual step-up reaches ₹1 crore in approximately 15 years – five years earlier. By year 15, your monthly SIP is ₹10,000 × (1.10)^14 = ₹37,975/month. The step-up does not feel painful in year 1 when you commit to it, because each year's increment is proportional to your income growth. This is the single most underused tool in Indian personal finance.
Use the Find My SIP mode above and toggle the step-up percentage to see exactly how much your starting SIP reduces when you commit to annual increases. The difference between 0% and 10% step-up is almost always 30-35% reduction in required starting SIP for the same target.
Most online crorepati calculators show you a gross corpus number and stop there. Here are three critical factors that affect your actual wealth at the ₹1 crore milestone that most tools ignore.
From July 2024, long-term capital gains (LTCG) on equity mutual funds are taxed at 12.5% on gains above ₹1.25 lakh per financial year. This applies when you redeem your SIP corpus. The tax calculation for a ₹1 crore corpus is not straightforward because each SIP instalment is taxed individually based on its own holding period and purchase NAV.
Rough estimate: a ₹10,000/month SIP over 20 years reaches ₹99.9 lakh corpus on ₹24 lakh invested. Total LTCG = ₹75.9 lakh in gains. Tax at 12.5% (after ₹1.25 lakh annual exemption) = approximately ₹9-10 lakh over the redemption period if redeemed gradually. Your actual post-tax ₹1 crore target requires building to approximately ₹1.09-1.12 crore gross corpus – the exact calculation is in our SIP with LTCG tax guide. Factor this into your target when using Find My SIP mode.
ELSS (Equity Linked Savings Scheme) SIPs offer an additional benefit: Section 80C deduction of up to ₹1.5 lakh per year on your SIP contributions. At 30% tax bracket, this saves ₹46,800/year in taxes, which itself can fund a ₹3,900/month SIP. Effective cost of your ELSS SIP is lower than the headline number because part of it is being funded by tax savings. See our Income Tax Calculator to compute your exact 80C saving.
Every mutual fund charges an annual expense ratio – the fund's operating cost as a percentage of your corpus. Active large-cap funds typically charge 1-1.5% expense ratio. Nifty 50 index funds charge 0.1-0.2%. The choice between direct and regular mutual fund plans also affects your effective expense ratio by 0.5-1% annually. This difference seems small. Over 20 years, it is catastrophic.
A ₹10,000/month SIP for 20 years at 13% gross return (typical active large-cap): At 1.5% expense ratio: effective return 11.5%, corpus = ₹91.8 lakh. At 0.2% expense ratio: effective return 12.8%, corpus = ₹1.10 crore. Difference: ₹18.2 lakh – almost 2 years of additional SIP – from the expense ratio alone. This is the compounding of costs working against you while compounding of returns works for you. Index funds are not just cheaper; they are mathematically superior for most long-term Crorepati goals because they preserve more of your return.
The 2008 financial crisis saw Indian equity markets fall 60% from their 2007 peak. The COVID crash of March 2020 wiped 38% in 40 days. Both are remembered as crises. For SIP investors who continued investing, both were the most productive periods of their entire investment journey.
A ₹10,000 SIP continued through the 2008-2009 crash accumulated units at NAVs 40-60% below peak. By 2014, those units had tripled. An investor who stopped their SIP in January 2008 and restarted in January 2010 (after "markets recovered") missed 24 months of the cheapest unit purchases available in a generation. The cost of that pause, compounded to 2026, is approximately ₹12-15 lakh in lost corpus per ₹10,000 monthly SIP. The instruction is simple: set up auto-debit and do not log in during market crashes.
This is also why SIP calculators use an average annual return rather than year-by-year actual returns. Markets do not give 12% every year. Some years give 35%, some give -25%. The 12% is what long-horizon equity SIP investors have historically received as a blended CAGR after averaging through both types of years. Your discipline through the -25% years is exactly what earns you the +35% years.
SIP beats lump sum in volatile markets because of rupee cost averaging – and also outperforms RD and FD over long horizons after accounting for inflation. Lump sum beats SIP in strong bull markets because 100% of your corpus is deployed from day 1 and compounds for the full period. The key insight: at your Crorepati milestone, it does not matter which method got you there. What matters is that you started, stayed consistent, and let time work.
If you receive a bonus, inheritance, or lump sum, combine both: invest the lump sum immediately (do not wait for a "better entry point" – time in the market always beats timing the market over 15+ year horizons) and keep the SIP running. The lump sum becomes a head start; the SIP keeps building. Use our Lumpsum Calculator alongside this tool to model the combined strategy.
Financial independence in the Indian context – a goal with real pitfalls covered in our guide on why FIRE fails in India – is often defined as the point where your investment corpus generates enough passive income to cover your living expenses without depending on a salary – a concept explained in depth in our retirement corpus guide. At 4% annual withdrawal rate (the globally accepted safe withdrawal rate for Indian investors), ₹1 crore generates ₹33,333 per month. That covers essential expenses in most Tier-2 cities and supplements income in metros. At ₹3 crore, the same withdrawal rate generates ₹1 lakh per month – enough for comfortable financial independence in most Indian cities.
The Crorepati milestone is therefore not just symbolic. It is the first concrete step toward financial independence – though inflation after retirement means your target corpus must account for rising living costs over a 20-30 year horizon. Once you cross ₹1 crore, your corpus itself becomes a compounding engine that works faster than your SIP contributions. The next crore typically takes half the time of the first. This is why the first crore is called the hardest – and why every month you wait to start costs you disproportionately more than you realise. Use the SWP Calculator to see what monthly income your target corpus will generate in retirement, and the FIRE Calculator to find your full financial independence number.