How this calculator works
This calculator answers the reverse of the usual "what will my SIP grow to" question: instead, it asks how long it will take to reach a fixed target, given a fixed monthly savings amount.
It works month by month. Starting from your current savings, each month it applies your expected annual return (divided into a monthly rate) and then adds your monthly savings amount:
balance = balance × (1 + annual rate ÷ 12 ÷ 100) + monthly savings
It repeats this for one month at a time until the balance reaches or crosses your target amount. The month at which that happens is the answer shown as "Time to Reach Your Goal." Because your balance also earns a return along the way, this calculator will always reach your target in the same number of months or fewer than a plan with the same monthly savings but no return at all.
Why this differs from a simple division
A rough back-of-envelope answer would be Target ÷ Monthly savings — for example, ₹5,00,000 ÷ ₹10,000 = 50 months, ignoring any growth on the money along the way. This calculator accounts for the fact that your balance is also earning a return each month, so in most cases it will take somewhat fewer months than that simple division suggests. The gap between the two numbers grows with a higher return rate or a longer time horizon.
Whether it's a business, a compliance deadline, or a company you're setting up, Shunya's CA team can help you plan around it.
Talk to a CA →How is "time to reach my goal" calculated?
The calculator grows your balance month by month — each month it adds your expected return for that month and then your monthly savings amount — until the balance reaches your target. The number of months it takes to cross your target is the answer shown.
What if I already have some savings?
Enter it as "Current savings." Since that amount also grows at your expected return each month, it reduces how many more months you need to reach your target.
Should I use the same return assumption as my SIP calculator?
Only if this goal is actually invested the same way. For short-term or near-term savings goals, a lower, safer return assumption (like a savings account, FD, or debt fund rate) is usually more appropriate than a long-horizon equity assumption.
Can I use this for any kind of savings goal?
Yes — it's a generic calculator that works for any target amount and time horizon, whether that's an emergency fund, a wedding, a down payment, or a big purchase. Just set the target, current savings, monthly savings capacity, and a return assumption that matches where the money is actually parked.
This tool is for quick estimation only and is not a substitute for professional financial or tax advice. Expected returns are an assumption you enter, not a guarantee — actual returns on savings accounts, FDs, or funds can vary. For your specific situation, consult a qualified financial advisor or CA.
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