How to Calculate Hourly Rate for GS

This guide explains how to convert a General Schedule (GS) annual salary into an hourly rate, which is useful for part-time work, overtime calculations, or comparing pay across different schedules. You will need the employee’s GS grade, step, and the applicable locality pay table for their duty station.

Formula

The hourly rate is the annual salary divided by the number of work hours in a year. For federal GS employees, the standard annual work hours are 2,087 (based on 52 weeks × 40 hours = 2,080, plus 8 hours for the holiday adjustment). The formula is:

Hourly Rate = Annual Salary ÷ 2,087

Where:

• Annual Salary is the total GS base pay plus locality pay (in dollars).
• 2,087 is the standard annual work hours for federal employees.

Worked Example

Suppose an employee has an annual GS salary of $75,000 (including locality). Using the formula:

Hourly Rate = $75,000 ÷ 2,087 = $35.94 per hour (rounded to two decimal places).

So the hourly rate is approximately $35.94/hour.

When to Use This Calculation

You use this calculation when you need to:

• Determine pay for part-time GS work (e.g., a 20-hour week).
• Compute overtime or holiday pay (which may be 1.5× or 2× the hourly rate).
• Compare GS pay to hourly private-sector wages.
• Estimate gross pay for a specific number of hours worked.

How to Read the Result

The result is the gross hourly pay before taxes and deductions. It does not include benefits, bonuses, or differentials. For a full-time GS employee, the hourly rate is used to calculate pay for any hours beyond the standard 80-hour biweekly pay period, such as overtime or compensatory time.

Common Mistakes

• Using 2,080 hours: Many use 2,080 (40 hours × 52 weeks) but the federal standard is 2,087. This small difference can affect the rate by a few cents.
• Ignoring locality pay: GS base pay varies by locality. Always use the total salary including locality adjustment, not just the base pay table.
• Rounding too early: Round only the final result, not intermediate steps, to avoid inaccuracies.
• Confusing annual salary with take-home pay: The hourly rate is based on gross salary, not net pay after deductions.

Tips

• Use the official OPM salary tables to find the exact GS grade and step salary for the specific duty station.
• For part-time appointments, the hourly rate is the same as full-time; you simply multiply by the number of hours worked.
• If you need to compute overtime, multiply the hourly rate by 1.5 for time-and-a-half, or by 2 for double time, as per federal rules.
• Keep a record of the salary table year, as pay adjustments occur annually.

Troubleshooting

If your calculated hourly rate seems off, check the following:

• Did you include locality pay? If not, add the locality adjustment to the base salary.
• Are you using the correct grade and step? GS grades and steps have specific salaries; verify the exact step.
• Is your salary figure annual or biweekly? Convert to annual if needed.
• Are you using the correct number of hours? For federal employees, 2,087 is standard; for other jobs, 2,080 may be appropriate.

Frequently Asked Questions

Q: Why 2,087 hours instead of 2,080?
A: The federal government uses 2,087 hours as the annual work hours, which accounts for the fact that most years have 2,087 work hours when considering weekdays and holidays. It’s a standard set by OPM.

Q: Does the hourly rate change if I work part-time?
A: No, the hourly rate is the same. Part-time employees are paid the same hourly rate as full-time employees for the same GS grade/step.

Q: How do I find my locality pay?
A: Use the OPM salary tables for your specific locality area (e.g., Washington, DC, or Rest of US). The table lists the combined base + locality salary for each grade and step.

Q: Is overtime calculated at 1.5 times the hourly rate?
A: Yes, for most GS employees, overtime is paid at 1.5 times the hourly rate (time-and-a-half). Some positions may have different rules, so check your agency’s policy.

Q: Can I use this for hourly wage comparisons?
A: Yes, converting to an hourly rate helps compare GS pay with private-sector hourly wages, but remember to consider benefits like retirement and health insurance.

Q: What if I work a compressed schedule?
A: The hourly rate remains the same; you simply multiply by the number of hours worked in a pay period. The annual salary is still divided by 2,087.

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in a | Annual salary | $ | 75000 | 0
in h | Hours per year | hours | 2087 | 0
out r | Hourly rate | $/hour | a / h | 2