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Retirement

Retirement Calculator

Estimate retirement savings at retirement and compare them with a target based on planned annual spending.

Best for: Project retirement savings at retirement and compare the balance with a spending-based target.

Your assumptions

Calculate your estimate

Your result

Retirement estimate

Projected savings at retirement
$2,275,614.94
Estimated target portfolio
$2,000,000.00
Projected surplus or gap
$275,614.94
Years until retirement
30 years

Projection compared with target

Retirement Calculator: formula, examples, and planning guide

A retirement calculator compares projected savings with a portfolio target derived from desired annual spending and a planning withdrawal rate.

How Silvia estimates a retirement target

The projected portfolio compounds current savings and monthly contributions until the planned retirement age. The target divides desired annual retirement spending by the entered withdrawal rate.

For example, $80,000 of annual spending and a 4% planning withdrawal rate imply a $2,000,000 target. This is a planning shortcut; it does not replace a year-by-year retirement income plan.

How withdrawal rate changes the target

A lower withdrawal rate requires a larger starting portfolio for the same spending goal. The appropriate rate depends on time horizon, asset mix, flexibility, taxes, and other income.

Portfolio target for $80,000 of annual retirement spending
Planning withdrawal rateImplied portfolio target
3%$2,666,667
3.5%$2,285,714
4%$2,000,000
5%$1,600,000

What to add before making a retirement decision

Use this result as a first checkpoint. A complete plan should also model Social Security, pensions, taxes, inflation, healthcare, uneven spending, and the possibility of living longer than expected.

  • Run the plan with a lower return and a later retirement-spending horizon.
  • Separate essential spending from flexible spending.
  • Treat a projected surplus as a buffer, not a promise.

How to use this retirement calculator

Use this retirement calculator to compare an accumulation projection with a simple spending-based target. It helps identify a potential gap, but a complete plan also needs Social Security, pensions, taxes, inflation, healthcare, and sequence risk.

  1. 1

    Enter age and current savings

    Use investable retirement assets and the years remaining until the planned retirement date.

  2. 2

    Add contributions and return

    Enter sustainable monthly saving and a conservative long-term net return.

  3. 3

    Compare projected balance with target

    Review whether the modeled portfolio supports the entered annual spending goal.

Worked planning example

Example: retire at 65 with a spending target

Set up

Enter current age, savings, monthly contributions, retirement age, and expected annual retirement spending.

Compare

Test a lower return and a higher spending case to create a planning range.

Takeaway

A plan with room under conservative assumptions is more resilient than one that works only in the base case.

Treat the target as a starting point for planning

Retirement success depends on withdrawals, longevity, taxes, benefits, inflation, and market sequence, not only the balance on retirement day.

  • Model Social Security and pension income separately.
  • Use inflation-adjusted spending assumptions.
  • Stress-test early-retirement market declines.

Calculation methodology and assumptions

For this retirement estimate, Silvia uses current age, planned retirement age, current retirement savings, monthly contribution, estimated annual return, desired annual retirement spending, planned withdrawal rate. Estimate retirement savings at retirement and compare them with a target based on planned annual spending. Results are estimates, not quotes, tax advice, or investment recommendations.

Frequently asked questions

How is the retirement target estimated?

The calculator divides planned annual retirement spending by the withdrawal rate you enter. A 4% rate implies a target of 25 times annual spending.

Does it include Social Security?

No. Estimate Social Security separately and subtract reliable income from spending needs in a fuller plan.

What return should I assume?

Use a range consistent with asset allocation, fees, inflation treatment, and time horizon rather than recent market performance.

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