Every other SIP calculator shows you what you'll have. This one also shows you what you could've had if you'd started earlier. We added that on purpose.
That gap isn't because you didn't save. It's because compound growth needs time, not effort. A ₹10,000 SIP starting at 25 beats a ₹20,000 SIP starting at 35 — even though the second person contributed more.
The most expensive decision in personal finance is the one you don't make. Today is the second-best day to start. Yesterday was the first.