Project your legacy terminal corpus. Understand the math of safe withdrawal rates, inflation drift, and sequence risk.
Retirement planning is the application of actuarial science to personal wealth management. In financial metrology, this represents the calculation of a Terminal Corpus—the total capital required to sustain life after the cessation of active wage-earning.
A cornerstone of retirement modeling is the Trinity Study, which identified the Safe Withdrawal Rate (SWR). For a portfolio consisting of 50% stocks and 50% bonds, a 4% annual withdrawal (adjusted for inflation) has historically provided a high probability of capital survival over a 30-year horizon.
Withdrawal = Corpus × 0.04Standard deterministic calculators assume a smooth linear return. In reality, the Sequence of Returns matters more than the average return. Experiencing a "Bear Market" in the first 2-3 years of retirement can irreversibly deplete the corpus.
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At age 65