How to Calculate Overtime Pay Step by Step

Calculating overtime pay by hand can feel overwhelming, but understanding the process helps you verify your paycheck and know exactly what you're owed. Whether you're an employee tracking earnings or an employer processing payroll, this step-by-step guide walks you through the manual calculation. For a faster, error-free approach, use our Overtime Calculator – it handles all the math in seconds.

You'll Need:

• Your regular hourly rate (e.g., $20.00/hr)
• Hours worked each day of the week (Monday–Sunday)
• Applicable overtime rules (daily and weekly thresholds, double-time thresholds)
• Overtime multiplier (usually 1.5x for time-and-a-half)
• Double-time multiplier (usually 2.0x)
• Calculator or paper for manual computation

Step-by-Step Instructions

1. Determine regular hours. Regular hours are those worked up to the daily and weekly thresholds. For example, under Federal rules, all hours up to 40 in a week are regular. Under California rules, hours up to 8 per day and 40 per week are regular. If daily overtime applies, any hours in a day beyond the daily threshold but within the weekly limit become overtime first.
2. Calculate overtime hours (1.5x). Overtime hours are those exceeding the daily threshold (if applicable) and/or the weekly threshold. Be careful not to double-count: total overtime hours are the greater of daily overtime and weekly overtime, but with proper allocation. Refer to our detailed Overtime Pay Formula for precise logic.
3. Calculate double-time hours (2x). Some rules, like California's, have a double-time threshold (e.g., hours beyond 12 in a day). Any hours worked above that daily double-time threshold are paid at double the regular rate. Additionally, some rules apply double time for all hours on the seventh consecutive day of work.
4. Compute regular pay. Multiply regular hours by your regular hourly rate: Regular Pay = Regular Hours × Regular Rate.
5. Compute overtime pay. Multiply overtime hours by your regular rate times 1.5: Overtime Pay = Overtime Hours × (Regular Rate × 1.5).
6. Compute double-time pay. Multiply double-time hours by your regular rate times 2: Double-Time Pay = Double-Time Hours × (Regular Rate × 2).
7. Total gross pay. Add regular, overtime, and double-time pay: Total Gross Pay = Regular Pay + Overtime Pay + Double-Time Pay.

Worked Examples

Example 1: Federal Rule (40-hour weekly threshold)

Scenario: You earn $18/hr and work 45 hours in a week, with no day exceeding 8 hours. Federal rule: overtime after 40 hours/week.

• Regular hours: 40
• Overtime hours: 45 - 40 = 5
• Double-time hours: 0
• Regular pay: 40 × $18 = $720
• Overtime pay: 5 × ($18 × 1.5) = 5 × $27 = $135
• Total gross pay: $720 + $135 = $855

Example 2: California Rule (daily and weekly thresholds, plus double-time)

Scenario: You earn $22/hr and work: Mon 9, Tue 10, Wed 8, Thu 11, Fri 9, Sat 0, Sun 0 = total 47 hours. California rule: overtime for hours >8 per day up to 12; double-time for hours >12 per day; weekly overtime after 40 hours.

• Daily overtime hours: Mon: 9-8=1, Tue: 10-8=2, Wed: 0, Thu: 11-8=3, Fri: 9-8=1 => total daily OT = 7 hours
• Daily double-time hours: None (no day >12)
• Weekly overtime: Total hours 47 - 40 = 7 hours
• Since daily OT (7) equals weekly OT (7), no extra weekly overtime beyond daily. Overtime hours = 7.
• Regular hours: 47 - 7 = 40
• Regular pay: 40 × $22 = $880
• Overtime pay: 7 × ($22 × 1.5) = 7 × $33 = $231
• Double-time pay: $0
• Total gross pay: $880 + $231 = $1,111

Common Pitfalls to Avoid

• Double-counting overtime hours: When both daily and weekly overtime exist, allocate the larger amount. In many cases, daily overtime already covers weekly overtime if the total weekly hours exceed 40. Use a consistent order: count daily overtime first, then see if any remaining hours push weekly hours over 40.
• Ignoring double-time thresholds: Some states (e.g., California) require double time for hours worked beyond 12 in a day. Forgetting this can underpay by a full multiplier.
• Seventh consecutive day rule: Some rules (like in California) require double time for all hours worked on the seventh day of a workweek, regardless of daily hours. Check your local regulations.
• Mixing up thresholds: Federal uses 40 hours/week only; California uses 8/day, 40/week, plus double-time after 12/day. Always verify which rule applies to you.
• Rounding improperly: Overtime pay is often rounded to the nearest cent, but accurate calculation uses exact multiplication before rounding. Our calculator handles this precisely.

For a more detailed explanation of overtime rules, read What Is Overtime Pay? Definition & Rules (2026). If you're curious about interpreting your results, check out the Overtime Pay Results Guide. And for answers to common questions, visit the Overtime Pay FAQ.