Working backwards from your goal. Tell us what you want — retirement corpus, child's education, home down payment — and we'll tell you the exact monthly SIP you need to start today.
By Deepak Jha, NISM Series V-A certified · Last updated
Most people invest whatever is left at the end of the month. That's why most people don't reach their goals. Smart investing works the other way: decide your goal first, then calculate exactly what monthly SIP gets you there — and treat it like an EMI you pay yourself first.
This calculator does the reverse SIP math for you. Tell it your goal amount, your timeline, and your expected return — it tells you the exact SIP you need to start today.
Kavya has a 7-year-old daughter. She wants ₹50 lakh ready for her college and wedding expenses 15 years from now. She has zero savings right now. How much SIP?
📌 At 12% expected return: ₹8,750/month
📌 At 10% expected return: ₹11,000/month
📌 At 8% expected return: ₹13,600/month
Now imagine Kavya says "let me think about this for a year." After just 1 year of delay, the required SIP jumps to ₹10,200/month — ₹1,450 more every single month, forever. The cost of waiting 12 months is ₹1,450 × 168 remaining months = ₹2.43 lakh in extra contributions. Plus she misses compounding.
Higher expected returns mean lower required SIP. But resist the temptation to assume 15–18% returns just to make the number look affordable. Plan at 10–12%. If markets deliver more, you'll have a pleasant surplus. If you over-assume, you'll reach your goal year short of your target.
Not accounting for inflation in the goal amount. If you want "₹1 crore for retirement" in 20 years, remember that ₹1 crore in 20 years will only buy what ₹30–35 lakh buys today (at 6% inflation). Your real goal should be ₹3 crore. Use the Inflation Calculator to find the right inflation-adjusted target before using this calculator.
Choose a goal preset or enter custom values. We'll show you the exact monthly SIP needed, with and without inflation adjustment.
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