Retirement Calculator


Free retirement calculator: see how much you need to retire, when you can retire, and how long your savings will last, with inflation-adjusted projections.

What Is a Retirement Calculator?

A retirement calculator answers the questions that decide when you can retire: how much you need to retire, how much to save each month, how much income your savings can support, and how long your retirement savings will last.

Switch between four planning modes depending on the question you're asking, enter your current age, retirement age, life expectancy, expected return, and inflation, and the calculator returns a year-by-year balance path so you can see exactly when savings peak and how quickly they draw down.

Retirement Savings Gap Example

Start at age 40 with $180,000 already saved, earn a 6% annual return, and contribute 13% of a $75,000 income that grows 3% a year: by age 67, projected retirement savings come to about $1,713,366. To replace 80% of your pre-retirement income until age 90, with 2.5% inflation and $1,500 a month from other income such as Social Security, you would need about $1,712,402 — a surplus of under $1,000, meaning this savings plan is right on track.

How Long Will Your Retirement Savings Last?

If you are already retired, switch to the How long can my money last? mode instead. For example, an $850,000 balance earning a 5% return, with a $3,500 monthly withdrawal that grows 2.5% a year to keep pace with inflation, lasts about 28 years and 4 months before the balance reaches zero. The year-by-year path shows exactly how the balance declines, so you can test a lower withdrawal or a different return assumption if you want the money to last longer.

Input
Retirement planning mode

How much do I need to retire?
%
Income needed after retirement
%
%
%
Other income after retirement
Current retirement savings
Future retirement savings
%
Result

Show income results as
Estimated amount needed at retirement
0.00
Required monthly contribution
0.00
Estimated annual withdrawal
0.00
Estimated duration
0 years 0 months
Projected retirement savings:
0.00
Retirement savings gap:
0.00
Suggested additional annual savings:
0.00
Suggested additional monthly savings:
0.00

Projected income at retirement:
0.00
Target retirement income:
0.00
Other retirement income:
0.00
Portfolio income needed:
0.00
Fig. 1 · Retirement projection

Retirement Calculator FAQ

How much money do I need to retire?

That depends on how much annual income you expect to need in retirement, how long retirement may last, your expected investment return, inflation, and other income such as pension or Social Security. This calculator estimates the required retirement amount from those assumptions.

What is the difference between retirement savings needed and projected retirement savings?

The amount needed at retirement is the estimated nest egg required to fund the selected retirement income path. Projected retirement savings is what your current savings and future contributions may grow to by retirement. The gap or surplus compares those two values.

How does inflation affect retirement planning?

Inflation increases the cost of spending over time, which means the income you need in retirement may rise even if your lifestyle stays the same. This calculator includes inflation in retirement spending assumptions where relevant.

Can this calculator estimate how long my savings will last?

Yes. The money-longevity mode estimates how many years and months a balance may support a chosen monthly withdrawal, given an average annual return assumption. It also shows a year-by-year remaining balance path.

When can I retire?

That depends on your target retirement income, current savings, contributions, and expected investment return. Enter your numbers into the "How much do I need to retire?" or "How can I save for retirement?" mode to see the savings gap or surplus at your planned retirement age, then adjust the age to test earlier or later scenarios.


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