What is a SIP Calculator?
A SIP Calculator is a free online tool that estimates the returns from your monthly mutual fund investments through a Systematic Investment Plan (SIP). It uses the principle of compound interest to project the future value of your investments based on the monthly contribution, expected return rate, and investment duration.
SIPs are India's most popular wealth-building tool. According to AMFI data, monthly SIP contributions in India crossed ₹26,000 crore in 2025 — a clear indication of how millions of Indians are systematically investing for their financial goals.
SIP Formula — How is SIP Return Calculated?
The mathematical formula used to calculate SIP returns is:
Where:
- M = Maturity amount
- P = Monthly SIP amount
- r = Periodic monthly rate of return ((1 + annual return)^(1/12) – 1)
- n = Total number of months
Important Note on Monthly Returns
A common mistake is dividing the annual return by 12. For a 12% annual return, the correct monthly rate is 0.95% (not 1%) because returns compound. Our calculator uses this accurate formula automatically.
The Power of Compounding — Why Start Early?
Albert Einstein famously called compound interest "the eighth wonder of the world." Here's how starting early dramatically changes your wealth:
- Start at 25: ₹10,000 SIP for 35 years at 12% = ₹5.5 Crore
- Start at 30: ₹10,000 SIP for 30 years at 12% = ₹3.5 Crore
- Start at 35: ₹10,000 SIP for 25 years at 12% = ₹1.9 Crore
- Start at 40: ₹10,000 SIP for 20 years at 12% = ₹1 Crore
Every 5-year delay nearly halves your final corpus!
What is Step-Up SIP?
A Step-Up SIP (also called Top-Up SIP) lets you increase your monthly SIP amount annually by a fixed percentage. This aligns your investments with your salary growth and dramatically boosts the final corpus.
Step-Up SIP Example
Compare ₹10,000 SIP for 20 years at 12% return:
- Regular SIP: Final corpus = ₹99.9 Lakhs
- 10% Step-Up SIP: Final corpus = ₹2.4 Crore (240% more!)
Benefits of Investing Through SIP
- Rupee Cost Averaging: Buy more units when markets fall, fewer when they rise
- Disciplined Investing: Auto-debit instills financial discipline
- Low Entry Barrier: Start with just ₹500/month
- Power of Compounding: Returns earn returns over time
- Goal-Based: Plan for retirement, child's education, home down payment
- No Market Timing Required: Removes emotion from investing
SIP vs Lumpsum — Which is Better?
SIP wins for: Salaried individuals, market timing uncertainty, building discipline, beginners
Lumpsum wins for: When markets are clearly undervalued, large windfall amounts, experienced investors
Try our or for comparison.
Best SIP Amounts by Income
- ₹25,000 salary: ₹2,500 - ₹5,000 SIP (10-20%)
- ₹50,000 salary: ₹7,500 - ₹15,000 SIP (15-30%)
- ₹1,00,000 salary: ₹20,000 - ₹35,000 SIP (20-35%)
- ₹2,00,000+ salary: ₹50,000+ SIP (25-40%)
How to Choose the Right Mutual Fund for SIP
- Define Your Goal: Retirement, education, home — different goals need different funds
- Time Horizon: <3 years → debt, 3-7 years → hybrid, 7+ years → equity
- Risk Appetite: Match fund risk with your tolerance
- Past Performance: Look at 5, 7, 10-year returns (not 1-year)
- Expense Ratio: Lower is better (Direct plans < Regular plans)
- Fund Manager Track Record: Consistent managers add value
Tax Implications on SIP Returns
- Equity Funds (>65% in equity): LTCG 12.5% above ₹1.25L (after 1 yr); STCG 20%
- Debt Funds: Taxed at your income tax slab rate
- ELSS (Tax-saver) Funds: ₹1.5L deduction under 80C, 3-year lock-in
- Hybrid Funds: Taxed based on equity vs debt allocation