Retirement Calculator Examples With Solutions
Review three retirement calculator examples for a zero-return check, a long-term savings plan, and adding pension income to reduce the portfolio goal.
How should you use these Retirement Calculator examples?
These examples turn the Retirement Calculator inputs into complete scenarios with stated values, calculation steps, and interpreted results. Use them to check how the calculator behaves, compare your own situation with realistic cases, and identify which inputs have the greatest effect before relying on an estimate.
Three Retirement Calculator Examples
Each scenario uses the same engine as the Retirement Calculator. The examples isolate basic arithmetic, demonstrate a long-term plan, and show how pension income changes the portfolio-funded gap.
Example 1: Zero-Return Retirement Check
A 60-year-old has $10,000, saves $100 at each month-end until age 65, and plans through age 70. Returns, fees, inflation, and contribution growth are all zero.
| Savings at retirement | $16,000.00 |
|---|---|
| Income gap | $200.00 per month |
| 60-month retirement goal | $12,000.00 |
| Projected surplus | $4,000.00 |
| Required monthly contribution | $33.33 |
Because every rate is zero, this scenario is an independent arithmetic check for both accumulation and withdrawals.
Example 2: Long-Term Retirement Savings Plan
The default plan starts at age 35 with $100,000, adds $1,000 monthly through age 67, increases contributions 2% annually, and plans through age 90. It uses a 7% return before retirement, 5% after retirement, a 0.25% fee, and 2.5% inflation.
| Projected savings at retirement | $2,414,000.57 |
|---|---|
| Value in today's dollars | $1,095,402.37 |
| Retirement savings goal | $1,672,862.27 |
| Projected surplus | $741,138.30 |
| Required starting monthly contribution | $539.54 |
| Estimated monthly retirement income | $7,550.63 |
The result is driven by the complete monthly model. It is not a guaranteed balance or a recommendation to use these assumptions.
Example 3: Add $1,000 of Monthly Pension Income
Keep every default assumption but add a $1,000 monthly pension in today's dollars. Desired income remains $6,000 and Social Security remains $2,500.
| Base portfolio income gap | $3,500.00 |
|---|---|
| Gap after pension | $2,500.00 |
| Base retirement goal | $1,672,862.27 |
| Goal after pension | $1,194,901.62 |
| Required contribution after pension | $242.59 |
The pension reduces the amount that savings must supply. This example assumes the entered pension continues through the planning age and remains equivalent to the entered today's-dollar amount.
Compare the Retirement Scenarios
| Scenario | Savings at retirement | Goal | Income gap | Required contribution |
|---|---|---|---|---|
| Zero-return check | $16,000.00 | $12,000.00 | $200.00 | $33.33 |
| Default long-term plan | $2,414,000.57 | $1,672,862.27 | $3,500.00 | $539.54 |
| Add $1,000 pension | $2,414,000.57 | $1,194,901.62 | $2,500.00 | $242.59 |
The pension does not change accumulation in Example 3, so projected savings remain the same. It changes the withdrawal need, retirement goal, and required contribution.
Reproduce the Results
- Open the Retirement Calculator and select Reset.
- For Example 1, enter ages 60, 65, and 70; $10,000 saved; $100 monthly; $1,000 desired income; and $800 Social Security. Set all rates to zero.
- For Example 2, reset to the shared defaults and calculate.
- For Example 3, keep the defaults and enter $1,000 for monthly pension income.
- Compare savings at retirement, the goal, income gap, required contribution, schedules, and return paths.
Corrections and Review
Report an issue or error in the calculator using the Contact Us page.