SIP Calculator Guide: How Mutual Fund SIPs Compound Wealth over Time
Learn how Systematic Investment Plans (SIP) build multi-lakh wealth over 5, 10, and 20 years. Master Rupee Cost Averaging and compound returns math.
Systematic Investment Plans (SIP) have democratized equity mutual fund investing for millions of retail investors across India. Instead of attempting to time volatile equity markets with large one-time lump-sum deposits, an SIP allows you to invest a fixed sum (as low as ₹500/month) at regular automated intervals.
By automating monthly debits, SIP investing shifts financial focus from market timing to disciplined long-term compounding.
1. The Two Engines of SIP Growth
Engine A: Rupee Cost Averaging Equity markets naturally cycle through bull surges and bear crashes. With an SIP: - When Net Asset Values (NAV) drop during market corrections, your fixed monthly installment purchases more fund units. - When NAVs rally to record highs, your installment buys fewer units.
Over multi-year cycles, this automatically lowers your average acquisition cost per unit without requiring emotional market timing decisions.
Engine B: The Exponential Power of Compounding Compounding occurs when the earnings generated by your mutual fund investments begin earning returns of their own. Over short timelines (1–3 years), returns appear linear. Beyond 7 to 10 years, compound interest curves upwards exponentially.
2. SIP Growth Projections Table (Assuming 12% p.a. CAGR)
| Monthly SIP | 5-Year Corpus | 10-Year Corpus | 15-Year Corpus | 20-Year Corpus |
|---|---|---|---|---|
| ₹2,000 | ₹1.64 Lakhs | ₹4.64 Lakhs | ₹10.09 Lakhs | ₹19.98 Lakhs |
| ₹5,000 | ₹4.12 Lakhs | ₹11.61 Lakhs | ₹25.22 Lakhs | ₹49.95 Lakhs |
| ₹10,000 | ₹8.24 Lakhs | ₹23.23 Lakhs | ₹50.45 Lakhs | ₹99.91 Lakhs |
Notice how investing ₹5,000/month for 20 years requires a total out-of-pocket investment of ₹12 Lakhs, yet builds an estimated final wealth corpus of nearly ₹50 Lakhs!