Will I Run Out of Money in Retirement Calculator

Use this retirement savings calculator to estimate whether your current savings will last through retirement. By entering your current savings, expected annual withdrawals, and expected annual return on investment, you can get a projection of how long your money will last.

How to Use This Calculator

To use the Will I Run Out of Money in Retirement Calculator, follow these steps:

Enter your current retirement savings amount in the "Current Savings" field.
Enter your expected annual withdrawal amount in the "Annual Withdrawal" field.
Enter your expected annual return on investment (ROI) in the "Annual ROI" field.
Click the "Calculate" button to see your results.

The calculator will display how many years your savings are projected to last based on your inputs. You can also view a chart showing your savings balance over time.

How the Calculation Works

The calculator uses a simple compound interest formula to project your retirement savings. The formula is:

Formula Used

Years = log(Annual Withdrawal / (Annual Withdrawal - Current Savings × Annual ROI)) / log(1 + Annual ROI)

Where:

Current Savings - The amount of money you currently have saved for retirement.
Annual Withdrawal - The amount of money you plan to withdraw each year during retirement.
Annual ROI - The expected annual return on your investment, expressed as a decimal (e.g., 5% = 0.05).

The calculator assumes that your savings will grow at the specified annual ROI and that you will withdraw the same amount each year. It does not account for inflation, taxes, or changes in your withdrawal or ROI over time.

Example Calculation

Let's say you have $500,000 saved for retirement, plan to withdraw $40,000 per year, and expect an annual ROI of 4%.

Using the formula:

Example Calculation

Years = log(40,000 / (40,000 - 500,000 × 0.04)) / log(1 + 0.04)

Years = log(40,000 / (40,000 - 20,000)) / log(1.04)

Years = log(40,000 / 20,000) / log(1.04)

Years = log(2) / log(1.04) ≈ 17.1 years

This means your $500,000 savings would last approximately 17.1 years with these assumptions.

Interpreting the Results

The calculator provides an estimate of how long your retirement savings will last based on your inputs. Keep in mind that this is just an estimate and actual results may vary.

If the calculator shows that your savings will last for fewer years than you expect, you may need to:

Increase your savings.
Reduce your annual withdrawal amount.
Adjust your expected ROI.

If the calculator shows that your savings will last longer than you expect, you may be able to retire earlier or enjoy a more comfortable lifestyle.

Important Note

This calculator provides an estimate only. Actual results may vary based on market conditions, taxes, inflation, and other factors not accounted for in this calculation.

Frequently Asked Questions

How accurate is this retirement savings calculator?: The calculator provides an estimate based on the inputs you provide. It assumes a constant annual ROI and does not account for inflation, taxes, or changes in your withdrawal or ROI over time. For a more accurate projection, consider consulting with a financial advisor.
What factors does this calculator not consider?: This calculator does not account for inflation, taxes, changes in your withdrawal or ROI over time, or market volatility. These factors can significantly impact your actual retirement savings.
Can I use this calculator for other types of savings projections?: This calculator is specifically designed for retirement savings projections. For other types of savings projections, you may need to use a different calculator or consult with a financial advisor.
How often should I review my retirement savings projection?: It's a good idea to review your retirement savings projection at least once a year, or whenever there are significant changes in your financial situation, such as a change in your job, a major purchase, or a change in your expected retirement date.
What should I do if the calculator shows my savings won't last through retirement?: If the calculator shows that your savings won't last through retirement, you may need to increase your savings, reduce your annual withdrawal amount, or adjust your expected ROI. You may also want to consider other retirement income sources, such as Social Security, a pension, or part-time work.