# Pension Calculator > Estimate your defined benefit pension payout based on years of service and salary. Page: https://askcalculators.com/calculator/pension-calculator/ Definition: https://askcalculators.com/calculator/pension-calculator/definition.json JSON Schema: https://askcalculators.com/calculator/pension-calculator/schema.json Version: 7.0.0 Maintained by: AskCalculators (software project; not a credentialed reviewer) Qualified review: pending. Automated checks do not establish professional approval. Page status: Live Review status: Pending ## Use Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation. Example: https://askcalculators.com/calculator/pension-calculator/?yearsService=25&finalSalary=85000&multiplier=2 ## Inputs - yearsService: Years of Service; type=number; optional; default=25 - finalSalary: Final Average Salary; type=number; optional; default=85000 - multiplier: Benefit Multiplier; type=number; optional; default=2 ## Outputs - result: Result; format=text; primary ## Formula Annual pension = final salary × years of service × pension multiplier; monthly pension = annual pension ÷ 12; optional lump-sum estimate = annual pension × entered factor. ## Rules - Empty optional inputs are undefined, not zero. - Hidden conditional inputs are ignored. - Do not invent missing required inputs.