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Pension Calculator

Defined benefit pension monthly payment estimator

Pension Calculator

A defined benefit (DB) pension pays a guaranteed monthly income in retirement, calculated from your salary, years of service, and an accrual rate set by your employer. Unlike 401(k) plans, the investment risk is borne by the employer, not the employee.

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Tip: Check if your pension offers a survivor benefit. Choosing a single-life annuity gives higher monthly payments but leaves nothing for a spouse if you die first.

  1. 1Annual pension = Final salary × Years of service × Accrual rate
  2. 2Example: $80,000 salary × 25 years × 1.5% = $30,000/year
  3. 3Monthly pension = Annual pension / 12
  4. 4Replacement rate = Annual pension / Pre-retirement salary
  5. 5Most advisors recommend replacing 70–80% of pre-retirement income
$80,000 salary, 30 years, 2% accrual=$48,000/year ($4,000/month)100% replacement if salary unchanged
$60,000 salary, 20 years, 1.5% accrual=$18,000/year ($1,500/month)30% replacement rate — supplement needed
SectorTypical Accrual RateNotes
US Federal (FERS)1.0–1.1%Higher for early retirement
Military2.5%20-year cliff vesting
State/local government1.5–2.5%Varies widely by state
Private sector DB1.0–1.5%Increasingly rare
UK final salary1/80th–1/60thPer year of service

Fun Fact

Only about 15% of private-sector US workers now have a defined benefit pension, down from 38% in 1980. Government workers still largely have DB pensions — about 84% are covered.

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