A SIP calculator monthly is a simple tool that answers one critical question: how much do I need to invest each month to reach my financial goal? Whether your target is ₹10 lakh for a car, ₹50 lakh for your child's education, or ₹1 crore for retirement — this calculator works backwards from your goal to give you the monthly SIP amount.
How the Monthly SIP Calculator Works
The calculator uses the reverse of the standard SIP formula. Instead of "how much will my SIP grow to?", it asks "how much SIP do I need for a given corpus?"
where r = monthly rate (annual% ÷ 12), n = months
For example, to reach ₹50 lakh in 15 years at 12% annual returns: monthly SIP = ₹8,414.
Monthly SIP Required for Common Goals
| Goal | Tenure | At 8% p.a. | At 10% p.a. | At 12% p.a. |
|---|---|---|---|---|
| ₹10 Lakh | 5 years | ₹13,610 | ₹12,940 | ₹12,244 |
| ₹25 Lakh | 10 years | ₹13,702 | ₹12,134 | ₹10,689 |
| ₹50 Lakh | 15 years | ₹17,325 | ₹14,378 | ₹8,414 |
| ₹1 Crore | 20 years | ₹23,260 | ₹17,460 | ₹10,109 |
| ₹2 Crore | 25 years | ₹25,678 | ₹17,320 | ₹8,927 |
Note: Returns shown are illustrative. Mutual fund SIP returns are market-linked and not guaranteed.
SIP Calculator Monthly vs Lump Sum: Which Is Better?
Many investors debate between putting in a lump sum vs. starting a monthly SIP. Here's the practical difference:
- Monthly SIP: Rupee cost averaging — you buy more units when markets fall, fewer when they rise. Best for salaried individuals with regular income.
- Lump sum: Works well if you have a large amount and markets are at a low. Higher risk if timing is wrong.
- Verdict: For most investors, monthly SIP is the safer, more disciplined approach.
Step-Up SIP: Boost Your Monthly SIP Each Year
A step-up or top-up SIP increases your monthly contribution by a fixed percentage each year — typically 10–15% in line with salary hikes. This dramatically reduces the time needed to reach your goal.
5 Tips for Monthly SIP Investors
- Start early: Even ₹500/month at age 22 beats ₹5,000/month at age 35 due to compounding.
- Don't stop during market dips: Dips are buying opportunities for SIP investors.
- Choose the right SIP date: The 1st or 5th of the month works best — just after salary credit.
- Review annually: Rebalance your portfolio once a year — don't check it daily.
- Use a plan calculator: A good plan calculator helps you set realistic goals before starting.