Goal SIP Calculator
Explore More Finance Calculators
How to Use the Goal SIP Calculator
Pick your goal type
Select a common goal such as a home, car, education, marriage, vacation, retirement or wealth creation, or choose Custom.
Enter the goal cost today
Drag the slider or type how much your goal costs in today's money. The calculator automatically inflation-adjusts it to its estimated future cost.
Add existing savings and current SIP
If you have already invested toward this goal, enter those amounts so the plan accounts for them and shows your progress.
Set time horizon, return and inflation
Choose how many years remain until you need the money, your expected annual return, and the expected inflation rate.
Enable step-up or change frequency (optional)
Turn on an annual SIP increase to start lower, and switch between monthly and quarterly contributions as needed.
Review your plan and options
Check whether you're on track, your goal health score, and use the scenario, timeline and shortfall options to close any gap.
Goal SIP Calculator — Plan the Monthly Investment for Any Financial Target
Most people have financial goals — a child's college education in 15 years, a home down payment in 7 years, retirement in 25 years — but very few know exactly how much they need to invest each month to actually reach those targets. A regular SIP calculator tells you what a fixed monthly investment will grow into. This Goal SIP Calculator works as a complete planning assistant: you tell it the cost of your goal today, your time horizon and expected return, and it calculates the exact monthly SIP required, adjusted to the future, inflation-adjusted cost of your goal.
Beyond the basic number, it tells you whether you're on track, how your goal health looks, compares scenarios, shows the benefit of increasing your SIP annually, and gives you concrete, calculated options to close any shortfall — extend your timeline, raise your SIP, add a lump sum, or enable a step-up.
The Goal SIP Formula — Working Backwards From Your Target
The Goal SIP formula is the inverse of the standard SIP future value formula. For a target corpus FV at a monthly return rate r over n months, where the SIP is invested at the start of each month:
Required Monthly SIP = (FV − Future Value of Existing Corpus) × r ÷ [((1 + r)n − 1) × (1 + r)]
Because goal costs rise over time, the target used is the inflation-adjusted future value: Adjusted Target = Goal Cost Today × (1 + inflation rate)years. Any existing savings are first grown to their future value and subtracted, so the SIP only needs to cover the remaining gap. The required SIP is the flat monthly amount; the recommended SIP adds a small safety buffer to account for uncertainty in returns.
Example — Child's education: Goal cost today ’30 lakh. Duration: 15 years. Expected return: 12% p.a. Inflation: 7% p.a.
- Inflation-adjusted target in 15 years: ’30 lakh × (1.07)15 ≈ ’82.7 lakh
- Required monthly SIP at 12% p.a. for 15 years ≈ ’17,100/month
- Without inflation adjustment (targeting just ’30 lakh): required SIP ≈ ’6,200/month — vastly insufficient in real terms
The difference between the two scenarios (’6,200 vs ’17,100/month) illustrates why inflation adjustment is not optional — it is essential for any goal more than five years away.
Goal-Based Investing vs Generic Investing
Generic investing — putting ’5,000/month into a mutual fund and hoping for the best — works better than not investing, but it rarely leads to reliable goal achievement. Without a defined target, investors tend to redeem prematurely when they see a large number, or panic-sell during market downturns without a reference for whether they're on track.
Goal-based investing changes this. When you know your required monthly SIP for a specific goal, you:
- Have a clear benchmark against which to measure progress annually
- Can avoid touching the investment for other purposes, because the goal is concrete
- Know exactly when to increase the SIP, as income grows
- Can rationally recalculate if market returns deviate from plan
Adjusting Your Plan When Results Look Unaffordable
If the required SIP comes out higher than you can comfortably afford, you have several levers to pull — use this calculator to model each one:
- Extend the timeline: More time means compounding does more of the work. The timeline analysis above shows how much the required SIP drops as the horizon grows.
- Add a lump sum: An upfront investment today reduces how much you need to save every month.
- Enable a step-up: Increasing your SIP by 5-15% each year as your income grows lets you start lower and still reach the goal.
- Increase expected return (carefully): Shifting from a hybrid fund to an equity fund reduces required SIP — but only if you're genuinely comfortable with equity volatility.
Age-Based Return Assumptions for Goal SIPs
The return rate you enter directly determines how much you need to invest monthly — and that rate should change depending on how far away your goal is. A 25-year-old saving for retirement 35 years away can comfortably use 12-14%, because a market crash in year 5 or 15 is irrelevant when you have two decades to recover. But that same person saving for a home down payment in 3 years should use 7-8%, because a sharp correction the year before you need the money turns a plan into a crisis.
A practical framework: for goals more than 7 years away, use 12% (equity). For goals 3-7 years away, use 8-10% (balanced advantage or hybrid fund). For goals under 3 years, use 6-7% (short-duration debt fund or FD). Use the scenario comparison above to see how a conservative or optimistic return assumption changes your required SIP. Revisit your plan annually as your horizon shortens.