Retirement Gap Calculator

See how your savings will grow by retirement, how big a nest egg your income goal needs, and how much to save each month to close the gap.

Runs in your browser — nothing is uploaded

About the Retirement Gap Calculator

A retirement plan has two sides: what your current savings and contributions will be worth on the day you stop working, and how much capital you need to replace the income you want. The gap between the two tells you whether you are on track and by how much.

The calculator projects your savings with monthly contributions and a constant return, then converts your monthly income goal into a target using the withdrawal rate. The 4 percent rule is the usual starting point, but a lower rate suits longer retirements. If there is a shortfall, it also shows the extra monthly saving that would close it.

FAQ

Retirement Gap Calculator — frequently asked

What withdrawal rate should I use?

Many planners start with 4 percent a year for a retirement of about 30 years, which came from US historical market data. Use 3 to 3.5 percent for a longer retirement or a more cautious plan, since a lower rate means a larger target but less risk of running out.

Does this account for inflation?

Not directly. Enter your income goal in today's money and an after-inflation return, or the result will be optimistic. For example, a 6 percent nominal return with 2.5 percent inflation is roughly a 3.5 percent real return.

Why is the monthly saving figure so sensitive to the return?

Compounding works in both directions. The longer the time horizon, the more the return contributes, so small changes in annual return can shift the required monthly saving noticeably. Test a range of returns to see how much your plan depends on them.

What if I already have a pension?

Subtract the expected annual pension from your income goal before you enter it. For example, if you want 4,000 dollars a month and expect 1,500 from a pension, enter 2,500 as the monthly income goal to find the savings you still need.

How long should I plan the money to last?

Enter your expected life expectancy. The result shows the years in retirement, which helps you judge whether a 30-year plan is enough. Planning to age 95 or beyond is a sensible safety margin for many people.

Is my financial information stored?

No. Every calculation runs in your browser and nothing you enter is sent to a server or saved between visits.

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