Start from the goal, not the SIP amount
Most SIP calculators ask what you will invest and tell you what you might end up with. Planning works the other way round. You know the goal, a child’s education or a house down payment, and you need the monthly figure that gets you there. This planner takes the goal and solves for the SIP.
Why the target grows with inflation
A goal that costs 50,000 today will not cost 50,000 in ten years. At 5% inflation it costs about 81,400. If you plan against today’s price, you arrive with the right amount of money and find it buys two thirds of what you wanted. The planner inflates the goal first, then sizes the SIP against the future price.
A worked example
A goal costing 50,000 today, needed in 10 years, at 5% inflation becomes about 81,400. To reach that at a 12% expected annual return, you need a monthly SIP of roughly 350. You put in about 42,000 yourself, and growth supplies the rest. Start five years later and the SIP needed nearly triples, to about 990.