🌅 Retirement Corpus Calculator
Answers the two retirement questions in one shot: (1) how large a corpus you need on your retirement day so that inflation-adjusted monthly expenses last till your planned life expectancy, and (2) the monthly SIP required from today to build that corpus.
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How it's calculated
Expenses at retirement = today's expenses × (1 + inflation)^years-to-retire. Corpus = present value (at the post-retirement return) of those growing withdrawals over retirement years. Required SIP = corpus solved through the SIP formula.
Frequently asked questions
What inflation should I assume?
India's long-run CPI averages ~5-6%; medical and lifestyle inflation run higher. 6% is a sensible planning default — stress-test at 7%.
Is the 4% rule valid in India?
The US 4% withdrawal rule roughly maps to a corpus of 25× annual expenses. With higher Indian inflation, planners often suggest 30×+ or the explicit modelling this calculator does.
