1. What is OPM Federal Length of Service?

The OPM (Office of Personnel Management) Federal Length of Service calculation determines the total creditable service time for federal employees. This is used to calculate benefits, retirement eligibility, and leave accrual rates.

2. How Does the Calculator Work?

The calculator sums all creditable service periods:

Where:

• Years — Whole years of federal service
• Months — Additional months beyond whole years (0-11)
• Days — Additional days beyond whole months (0-30)

Explanation: The calculation converts all time periods to years for a standardized measurement of total federal service.

3. Importance of Service Calculation

Details: Accurate service calculation is crucial for determining retirement benefits, leave accrual rates, and eligibility for various federal employee programs.

4. Using the Calculator

Tips: Enter your creditable service in years, plus any additional months and days. The calculator will sum these to provide your total federal service in years.

5. Frequently Asked Questions (FAQ)

Q1: What counts as creditable federal service?
A: Most federal employment time counts, including full-time, part-time, and certain temporary service. Some exceptions apply for intermittent service.

Q2: How precise should my calculation be?
A: For official purposes, OPM calculates to the day. This calculator provides an estimate rounded to two decimal places.

Q3: Does military service count?
A: Military service may be creditable if you make a deposit payment to the retirement system. Check with your HR office.

Q4: How is service credit calculated for part-time work?
A: Part-time service is prorated based on a standard 40-hour work week.

Q5: Where can I get my official service computation date?
A: Your official service computation date is available from your HR office or through your eOPF records.