Pension Calculator

Calculate your defined benefit pension amount using years of service, final salary, and benefit multiplier. Includes early retirement reduction, COLA, and High-3/High-5 averaging.

$
%
Annual Pension Benefit
Monthly Pension Benefit
Income Replacement Rate
Estimated Lifetime Value (20 yr)
Extended More scenarios, charts & detailed breakdown
$
%
%
Annual Pension Benefit
Effective Salary Used
Monthly Pension Benefit
Income Replacement Rate
Professional Full parameters & maximum detail
$
$
$
$
$
%
%
%
%
$

Benefit Calculation

Average Salary Used
Gross Annual Pension
Survivor Benefit Reduction
Net Annual Pension (after survivor)

Monthly Income

Monthly Gross Pension
Monthly After-Tax Pension
Monthly Total with Social Security

Projections

Monthly Pension at Year 10 (with COLA)

How to Use This Calculator

  1. Enter your Years of Service — total credited years in the pension plan.
  2. Enter your Final Average Salary — check your plan document for whether it uses final year or a multi-year average.
  3. Enter your plan's Benefit Multiplier — typically 1.5%–2.5% per year of service.
  4. See your estimated Annual and Monthly Pension instantly.
  5. Use the Early Retirement tab to see how retiring before full retirement age reduces your benefit.

Formula

Annual Pension = Years of Service × Final Average Salary × Benefit Multiplier

Early Retirement: Reduced Annual Pension = Full Pension × (1 − Years Early × Reduction Rate)

COLA Adjusted Year N: Starting Pension × (1 + COLA Rate)^N

Example

Example: 25 years of service, $75,000 final salary, 2% multiplier.

  • Annual Pension: 25 × $75,000 × 2% = $37,500/year
  • Monthly Pension: $3,125/month
  • Income Replacement Rate: 50% of final salary
  • With 2% COLA, pension grows to ~$3,812/mo by year 10

Frequently Asked Questions

  • The standard formula is: Annual Pension = Years of Service × Final Average Salary × Benefit Multiplier. For example: 25 years × $75,000 × 2% = $37,500/year ($3,125/month).
  • High-3 averages your three highest consecutive years of salary. High-5 averages five years. High-3 typically results in a slightly higher pension since it captures peak earning years more precisely. Federal FERS uses High-3.
  • Retiring before your full retirement age triggers a reduction, often 5% per year. Retiring 5 years early with a 5% reduction results in a 25% lower lifetime benefit. Some plans also use a vesting schedule.
  • COLA (Cost of Living Adjustment) is an annual increase to your pension benefit to keep pace with inflation. Federal retirees under CSRS receive a COLA equal to the full CPI increase; FERS retirees get a reduced COLA (CPI minus 1%).
  • A survivor benefit reduces your pension payment to provide continued income to a spouse after your death. Federal employees under FERS can elect a 25% or 50% survivor benefit, which reduces the retiree's payment by 5% or 10% respectively.

Related Calculators

Sources & References (5)
  1. Department of Labor — Types of Retirement Plans — U.S. Department of Labor
  2. PBGC — Pension Benefit Guaranty Corporation — Pension Benefit Guaranty Corporation
  3. IRS — Defined Benefit Plans — Internal Revenue Service
  4. SSA — Government Pension Offset and WEP — Social Security Administration
  5. FINRA — Pension Plans Overview — Financial Industry Regulatory Authority