Funded ratio calculator
Your retirement, priced on today's bonds
Four numbers in, one number out: your spending priced off today's interest rates after inflation, each year weighted by the odds of living to spend it, with your Social Security taken off the total.
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What a funded ratio is
Your funded ratio is what you have, divided by what your retirement spending costs today. Above 100%, the plan is paid for at today's prices. Below it, the gap is what is still to find.
The cost is not a guess about markets. Each year of spending is priced on government bonds that rise with inflation, the way an actuary prices any promise of income, with your Social Security taken off first. So the ratio moves only when real interest rates move or your plan does.
A success score tells you how often a simulation worked out. A funded ratio tells you what your retirement costs today. The One Number That Matters explains why that is the number to watch.