Understanding SIP: A Complete Guide to Systematic Investment Plans
A Systematic Investment Plan (SIP) is a disciplined approach to investing in mutual funds. Instead of investing a lump sum, you invest a fixed amount regularly — typically monthly. This strategy harnesses the power of rupee cost averaging and compounding to build significant wealth over time. Our SIP calculator above shows exactly how your monthly investments can grow into a substantial corpus.
How is SIP Return Calculated? (The Formula)
SIP returns are calculated using the future value of an annuity formula, which accounts for regular periodic investments growing at a compounded rate:
- FV = Future Value (total corpus at maturity)
- P = Monthly SIP amount invested
- r = Monthly rate of return (Annual Rate / 12 / 100)
- n = Total number of monthly installments (Years × 12)
Why SIP Beats Lump Sum Investing
1. Rupee Cost Averaging
When markets fall, your fixed SIP amount buys more units. When markets rise, you buy fewer. This averages out your purchase cost over time, reducing risk.
2. Power of Compounding
Your returns generate their own returns. A ₹10,000 monthly SIP at 12% for 20 years grows to ₹99.9 lakh — but you only invested ₹24 lakh. That's ₹75.9 lakh in pure wealth gain.
3. Financial Discipline
SIP automates your investments. You don't need to time the market — just stay consistent. Even ₹500/month can grow into lakhs over decades.
SIP vs PPF vs FD: Which is Better?
While Fixed Deposits (FD) and Public Provident Fund (PPF) offer guaranteed returns with zero risk, equity SIPs historically deliver 10-15% annual returns over long periods. A balanced portfolio often includes all three: SIP for growth, PPF for tax-free safe returns, and FD for emergency liquidity. Use our PPF Calculator and FD Calculator to compare.