Pension Calculator
Estimate your monthly and annual pension benefit based on years of service, final salary, and benefit factor.
Monthly Benefit
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Annual Benefit
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Lifetime Benefit (20 yrs)
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What is Pension Calculator?
A pension calculator helps you estimate the retirement income you'll receive from a defined-benefit pension plan. Your benefit is determined by a formula that multiplies your years of service, your final salary, and a benefit factor set by your employer or plan.
How to use
- 1 Enter your total years of service at retirement.
- 2 Enter your final annual salary (or the salary used by your plan).
- 3 Enter the benefit factor — most plans use 1.5% to 2.5%; check your plan documents.
- 4 Your monthly benefit, annual benefit, and estimated lifetime payout appear instantly.
- 5 Adjust any input to see how working longer or a higher salary changes your benefit.
Formula
Example calculation
30 years of service, $80,000 final salary, 2% benefit factor: Annual pension = 30 × $80,000 × 0.02 = $48,000. Monthly benefit = $4,000. Lifetime benefit over 20 years = $960,000.
Frequently asked questions
What is a benefit factor?
The benefit factor (also called an accrual rate) is a percentage set by your pension plan. Common values range from 1.5% to 2.5% per year of service. Check your plan's Summary Plan Description for your exact factor.
What salary is used in the pension formula?
Most plans use your final year's salary, the average of your last 3–5 years, or your highest 3–5 earning years. This calculator uses the single salary figure you enter, so adjust it to match your plan's definition.
Is my pension taxable?
Yes, in most cases pension income is taxable as ordinary income at the federal level. Some states exempt pension income partially or fully. Consult a tax advisor for your specific situation.
How does early retirement affect my pension?
Taking a pension before your plan's normal retirement age typically reduces benefits by 3%–6% per year early. This calculator shows the full benefit — apply your plan's early retirement reduction factor separately.
What is a cost-of-living adjustment (COLA)?
Some pension plans include automatic COLA increases to protect against inflation. This calculator does not apply COLA, so actual lifetime benefits may be higher if your plan includes them.