Estimates the corpus you'll need at retirement to sustain your current lifestyle (adjusted for inflation), and the monthly SIP needed to build it.
This calculator projects your current monthly expenses forward to your retirement age using your expected inflation rate, then estimates how large a corpus you'd need at retirement to sustain that inflation-adjusted expense level for the rest of your expected lifespan — accounting for the fact that your remaining corpus keeps earning a real (inflation-adjusted) return even during retirement.
It then works backward to tell you the monthly SIP needed between now and retirement, given your existing savings and expected pre-retirement investment return, to close the gap between what you have and what you'll need.
Because your expenses in the future will cost far more than they do today — even moderate 6% inflation roughly doubles costs every 12 years, so a corpus that looks large today may not stretch as far decades from now.
No — this calculator estimates the corpus needed if your expenses are funded entirely from your own savings. If you expect a pension (like from NPS or EPS), your actual required corpus would be lower.
Yes — your income, expenses, and risk tolerance change over time, and market returns won't be perfectly steady. Revisiting this every few years (or after major life changes) keeps your plan realistic.