Adjust your savings, contributions, and retirement spending. See exactly how long your money will last — and what moves that number.
45+ years of financial freedom
Illustrative estimate. Assumes 7% pre-retirement / 4% post-retirement annual return, current age 32, no liabilities. For a full plan based on your real assets and liabilities, use ExitAge.
Your retirement runway is the number of years your financial position can sustain your chosen lifestyle without employment income. It is a duration, not a destination.
Most retirement calculators output a target balance — a nest egg figure you are trying to reach. A retirement runway calculator does something more useful: it shows you how far your money will actually take you from any given retirement date, and what you can do today to extend that distance.
The calculator above models the core relationship between savings, contributions, retirement age, and spending. Adjust any slider and your runway updates in real time.
The calculator above gives you a useful starting point. ExitAge builds on the same concept with your real financial picture.
Real assets. Real liabilities. Real lifestyle spending. One clear answer.
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A retirement runway calculator is a financial planning tool that calculates how many years your current savings, investments, and income streams will fund your desired retirement lifestyle — starting from any given date. Unlike a standard retirement calculator, which tells you whether you have "enough" to reach a target age, a retirement runway calculator outputs a duration: your financial independence runway in years.
Your retirement runway is the number of years your financial position can fund your chosen lifestyle without employment income. It is a dynamic figure — it changes as your assets grow, your liabilities decline, and your spending evolves.
A nest egg is a target balance (e.g. $1.2 million). A retirement runway is a duration (e.g. 28 years of financial independence). Nest egg thinking asks "am I there yet?" — runway thinking asks "how far can I go from here?" Both are useful, but retirement runway is more actionable day-to-day because every financial decision visibly changes it.
The basic formula is: Retirement Runway = Total Assets divided by Annual Retirement Spending. However, this understates the true runway because it ignores asset growth. A more accurate version accounts for compound growth across each asset, liability paydown schedules, and variable income before retirement. ExitAge uses this extended model to produce a precise runway figure.
Three levers extend your retirement runway: income (a pay rise or additional income stream adds years by accelerating asset accumulation), liabilities (paying off a mortgage or loan early reduces draw-down requirements), and asset allocation (moving savings into higher-return asset classes increases compound growth). ExitAge lets you model the impact of each lever in real time.
A retirement runway should be long enough to cover your expected lifespan from your planned exit date, plus a buffer for longevity risk. For most people targeting retirement at 60–65, a 30–35 year runway is a reasonable minimum. However, the right answer depends on your target spending, asset growth assumptions, and risk tolerance — all of which ExitAge calculates for your specific situation.
Standard retirement calculators ask for a single savings balance and apply a fixed withdrawal rate (typically 4%) to determine a retirement date. ExitAge models your full financial ecosystem: each asset with its own return rate (property, shares, super), liabilities as first-class inputs (mortgages, debts), and user-defined retirement spending rather than a percentage assumption. The result is a retirement runway — a precise, dynamic measure of your financial independence — rather than a pass/fail verdict.
The calculator above uses simplified inputs. ExitAge models your real assets individually (each with its own return rate), real liabilities with paydown schedules, inflation-adjusted retirement spending, and scenario comparisons — giving you a precise, personalised exit date rather than an estimate.
More questions? Read our full retirement runway guide →