United StatesSalary & Paycheck

How to Calculate Overtime Pay: 1.5×, 2× and Weekly Overtime Explained

The exact formula for time-and-a-half and double time, plus why the same schedule pays differently in Texas and California.

By: CalcGeo Editorial TeamVerified by: CalcGeo Review BoardReviewed: October 2026• 13 min read
Key Takeaways & Direct Answer

What is the formula to calculate overtime pay in the United States?

Under the federal Fair Labor Standards Act (FLSA), covered non-exempt employees must receive at least 1.5 times their regular hourly rate for all hours worked over 40 in a single workweek. The basic formula is: Overtime Pay = Overtime Hours × Regular Hourly Rate × Overtime Multiplier (1.5× for time-and-a-half, or 2.0× for double time). Total gross pay is calculated by adding base regular earnings to total overtime compensation.

  • Federal Overtime Formula: Overtime Pay = (Hours Worked − 40) × (Hourly Rate × 1.5).
  • Double Time (2.0×): Required under specific state statutes (notably California for work past 12 hours in a workday or past 8 hours on the 7th consecutive day) or employment contracts.
  • Workweek Principle: Overtime is calculated on a single 7-day, 168-hour workweek basis; employers cannot average hours across biweekly pay periods.
  • Bonuses Increase Regular Rate: Non-discretionary bonuses and shift differentials must be included when determining the regular rate before computing overtime.
  • State Differences: California requires daily overtime after 8 hours/day, whereas Texas, Florida, and federal law require overtime only after 40 hours/week.

1. The Overtime Formula & Quick Answer

Overtime appears simple on the surface: work more hours, earn premium pay. In practice, however, your overtime compensation depends on three legal variables: your statutory regular rate, the applicable overtime multiplier, and the threshold rule enforced by your jurisdiction.

Under the federal Fair Labor Standards Act (FLSA), the primary calculation formula is:

Overtime Pay = Overtime Hours × Regular Hourly Rate × Overtime Multiplier

Total gross compensation for the workweek is the sum of straight-time pay and the overtime premium:

Total Gross Pay = (Regular Hours × Regular Rate) + Overtime Pay
Federal AuthorityUnder 29 U.S.C. § 207(a)(1), no employer shall employ any non-exempt employee for a workweek longer than 40 hours unless such employee receives compensation for excess hours at a rate not less than one and one-half times the regular rate.

2. Step-by-Step Overtime Calculation

To compute weekly overtime compensation manually, follow this four-step standard procedure:

  1. 1Step 1: Determine the Regular Hourly Rate: For hourly employees without bonuses, this is your base hourly rate. For salaried non-exempt workers or workers with bonuses, determine total straight-time earnings divided by total hours worked.
  2. 2Step 2: Identify Overtime Hours: Subtract the statutory threshold (usually 40 hours) from total hours worked in the established workweek.
  3. 3Step 3: Calculate the Overtime Rate: Multiply the regular hourly rate by 1.5 (for time-and-a-half).
  4. 4Step 4: Multiply Overtime Hours by Overtime Rate: Add this figure to your regular 40-hour straight-time pay.

Worked Example: $25.00/hour, 48 Hours Worked

  • Regular Hourly Rate: $25.00
  • Overtime Rate: $25.00 × 1.5 = $37.50 per hour
  • Overtime Hours: 48 − 40 = 8 hours
  • Overtime Compensation: 8 hours × $37.50 = $300.00
  • Regular Base Pay: 40 hours × $25.00 = $1,000.00
  • Total Gross Pay: $1,000.00 + $300.00 = $1,300.00

3. What Double Time (2.0×) Looks Like

Double time pays 2.0 times your regular hourly rate. For an employee earning $25.00 per hour, double time pays $50.00 per hour, meaning 5 double-time hours generates $250.00 in premium pay.

Federal law under the FLSA does not mandate double-time pay under any circumstances. Double time is created exclusively through:

  1. 1State Statutory Mandates: California is the most prominent state requiring double time by law (all hours worked beyond 12 in a single workday, and all hours worked beyond 8 on the seventh consecutive workday).
  2. 2Collective Bargaining Agreements (CBAs): Union contracts frequently mandate double time for weekend shifts, statutory holidays, or overnight assignments.
  3. 3Voluntary Company Policies: Private employment contracts specifying premium tiers.

4. Weekly Overtime vs. Daily Overtime

The single biggest source of payroll confusion is the difference between federal weekly thresholds and state daily thresholds:

  • Federal Rule (40-Hour Weekly Standard): Enforced in Texas, Florida, and the majority of states. Overtime is triggered only after an employee exceeds 40 actual working hours in a 7-day workweek. Working a 14-hour shift on Monday does not trigger overtime if the employee only works 34 hours for the entire week.
  • California Daily Overtime Rule: California requires overtime after 8 hours worked in a single calendar day, regardless of total weekly hours. Hours 8 through 12 in a workday are paid at 1.5×, hours past 12 are paid at 2.0×, and the first 8 hours on the 7th consecutive day of work are paid at 1.5× (with hours past 8 paid at 2.0×).
  • Other Daily Overtime States: Alaska (over 8 hours/day), Colorado (over 12 hours/day), and Nevada (over 8 hours/day for workers earning less than 1.5× minimum wage) enforce daily rules.
Overtime Thresholds Across Jurisdictions
JurisdictionWeekly ThresholdDaily 1.5× ThresholdDaily 2.0× Threshold7th Day Rule
Federal / Texas / Florida40 hoursNoneNoneNo
California40 hours8 to 12 hoursOver 12 hoursYes (1.5× first 8h, 2.0× thereafter)
Colorado40 hoursOver 12 hoursNoneNo
Alaska40 hoursOver 8 hoursNoneNo
Ontario (Canada)44 hoursNoneNoneNo

5. Same Schedule, Different State: Texas vs. California

To illustrate why jurisdictional rules matter, consider an employee earning $25.00 per hour who works four 12-hour shifts in a workweek (48 hours total):

Texas (Federal 40-Hour Rule):

  • Total hours worked: 48 hours
  • Regular straight-time hours: 40 hours × $25.00 = $1,000.00
  • Overtime hours: 8 hours × ($25.00 × 1.5) = $300.00
  • Total Gross Pay: $1,300.00

California (Daily Overtime Rule):

Each 12-hour day is divided into 8 regular hours and 4 daily overtime hours:

  • Regular straight-time hours: 4 days × 8 hours = 32 hours × $25.00 = $800.00
  • Daily overtime hours: 4 days × 4 hours = 16 hours × ($25.00 × 1.5) = $600.00
  • Total Gross Pay: $1,400.00

Result: The exact same worker working the exact same 48 hours earns $100.00 more in California due to daily overtime rules.

Jurisdiction StrategyWhen scheduling shifts longer than 8 hours, multi-state employers must account for local daily overtime laws to avoid unexpected wage and hour liabilities.

6. How Bonuses Change Your Regular Rate

One of the most frequently audited overtime errors is calculating overtime solely on base hourly wages when non-discretionary bonuses are paid.

Under 29 CFR § 778.208, non-discretionary bonuses (such as attendance incentives, production bonuses, and safety bonuses) must be added into total compensation before computing the regular rate:

Example: Bonus Recalculation

A worker earns $20.00/hour, works 45 hours, and receives a $90.00 weekly production bonus:

  1. 1Total Straight-Time Earnings: (45 hours × $20.00) + $90.00 bonus = $990.00
  2. 2True Regular Rate of Pay: $990.00 ÷ 45 total hours = $22.00 per hour
  3. 3Overtime Premium Due: 5 overtime hours × ($22.00 × 0.5) = $55.00
  4. 4Total Weekly Gross Pay: $990.00 + $55.00 = $1,045.00

If the employer had incorrectly paid overtime using only the $20 base rate (5 × $10 = $50), the employee would be underpaid by $5.00, triggering statutory wage penalties.

7. Who Is Exempt from Overtime Pay?

Not every employee is entitled to overtime pay. The FLSA categorizes workers into two classifications:

  • Non-Exempt Employees: Entitled to federal and state minimum wage and overtime premiums. Most hourly employees are non-exempt.
  • Exempt Employees: Not entitled to overtime pay. To be classified as exempt under the standard White Collar exemptions (Executive, Administrative, Professional), an employee must satisfy two distinct legal tests: 1. Salary Level Test: Must be paid a guaranteed salary meeting the statutory threshold. 2. Duties Test: Primary job duties must involve high-level management, independent decision-making on matters of significance, or advanced specialized intellectual knowledge.

A job title like "Manager" or paying someone on a salary basis does not automatically make them exempt. If job duties do not satisfy Department of Labor criteria, the worker is legally non-exempt and owed overtime.

8. How Overtime Wages Are Taxed

A common workplace myth is that working overtime "pushes you into a higher tax bracket and makes you lose money." In reality:

  1. 1Marginal Tax System: The United States uses progressive tax brackets. Moving into a higher tax bracket only taxes the dollars earned above that bracket threshold at the higher percentage. Every dollar earned before that threshold is taxed at the lower rates.
  2. 2Payroll Withholding Spikes: Because payroll systems annualize each individual paycheck, a large overtime check may cause the withholding algorithm to assume you earn that elevated amount every pay period, temporarily withholding at a higher marginal rate. Any excess withholding is refunded when filing your Form 1040 tax return.
  3. 3Temporary Overtime Deduction (2025–2028): Federal legislation provides a temporary deduction for qualified overtime premium compensation within statutory phase-outs.

9. Working Two Different Pay Rates in One Week

When an employee performs two different roles at two distinct wage rates for the same employer during a single workweek (e.g., 20 hours as a cashier at $18.00/hour and 25 hours as a shift lead at $22.00/hour), the FLSA requires overtime to be computed using the weighted average regular rate:

  1. 1Total Straight-Time Pay: (20 × $18.00) + (25 × $22.00) = $360.00 + $550.00 = $910.00
  2. 2Weighted Regular Rate: $910.00 ÷ 45 total hours = $20.22 per hour
  3. 3Overtime Premium (Half-Time): 5 overtime hours × ($20.22 × 0.5) = $50.56
  4. 4Total Gross Wages: $910.00 + $50.56 = $960.56

10. Common Overtime Calculation Pitfalls

Avoid these widespread compliance and calculation errors:

  • Averaging Across Pay Periods: Calculating overtime across a 2-week pay period (e.g., 50 hours in week 1 and 30 hours in week 2 = 80 hours total) violates federal law. Overtime is due on the 10 hours in week 1.
  • Ignoring Compensable Time: Mandatory pre-shift briefings, equipment setup, donning safety gear, and working through lunch breaks count as hours worked toward overtime.
  • Substituting Comp Time in Private Employment: Private sector employers cannot legally offer "comp time off" in lieu of cash overtime compensation under the FLSA.

11. A Time-Saving Calculation Shortcut

You don't have to calculate regular pay and overtime pay separately. You can use this mathematical shortcut:

Pay all hours worked at your regular rate, then add an extra half-rate (0.5×) for the overtime hours:

  1. 1All hours at regular rate: 46 hours × $18.00 = $828.00
  2. 2Extra half-rate for overtime hours: 6 hours × $9.00 ($18 × 0.5) = $54.00
  3. 3Total Gross Pay: $828.00 + $54.00 = $882.00 (Exact same answer, faster to compute on a calculator).
Quick Math TipThe half-time shortcut is especially handy when checking payroll stubs that list overtime as an additional 0.5 premium line item.

12. Quick Reference: Common Hourly Rates at 1.5×

Consult this quick-reference table to find standard time-and-a-half overtime rates:

Hourly Wage to Overtime Rate Conversion Table (1.5× and 2.0×)
Base Hourly Wage1.5× Overtime Rate2.0× Double Time RatePay for 10 Overtime Hours (1.5×)
$15.00 / hr$22.50 / hr$30.00 / hr$225.00
$18.00 / hr$27.00 / hr$36.00 / hr$270.00
$20.00 / hr$30.00 / hr$40.00 / hr$300.00
$22.50 / hr$33.75 / hr$45.00 / hr$337.50
$25.00 / hr$37.50 / hr$50.00 / hr$375.00
$28.00 / hr$42.00 / hr$56.00 / hr$420.00
$30.00 / hr$45.00 / hr$60.00 / hr$450.00
$35.00 / hr$52.50 / hr$70.00 / hr$525.00
$40.00 / hr$60.00 / hr$80.00 / hr$600.00

13. Frequently Asked Questions

Review answers to critical wage and hour questions:

Expert Q&A

Frequently Asked Questions

Is overtime pay always 1.5× your normal wage?

Under federal law (FLSA), overtime is paid at a minimum of 1.5 times your regular rate. Double time (2.0×) is not required federally, but is mandated in states like California under specific conditions (e.g., work exceeding 12 hours in a single workday).

Can an employer force you to take comp time instead of overtime pay?

No. For private sector employers covered by the FLSA, substituting compensatory time off ('comp time') instead of paying cash overtime wages is illegal. Comp time arrangements are permitted only for certain public agency employees.

Does paid time off (PTO) or holiday pay count toward 40 hours of overtime?

Generally no. Federal overtime is calculated solely on actual hours worked. Paid sick leave, vacation days, and holiday pay do not count toward the 40-hour threshold unless specified in your company policy or union agreement.

Can salaried employees earn overtime pay?

Yes, if they are classified as salaried non-exempt. Salaried workers are only exempt from overtime if they earn above the statutory salary threshold and perform exempt managerial, professional, or administrative duties under DOL regulations.

How do you calculate overtime for salaried non-exempt employees?

Divide the weekly salary by 40 hours (or the agreed regular hours) to establish the base hourly rate, then multiply that rate by 1.5 for all hours worked beyond 40.

How do you figure out time-and-a-half?

Multiply your regular hourly rate by 1.5. For example, if you earn $20 an hour, your time-and-a-half overtime rate is $30 an hour ($20 × 1.5).

What is double time and how is it calculated?

Double time pays twice your regular hourly wage (2.0×). At $20 an hour, double time pays $40 an hour. Double time is required by law in California for work exceeding 12 hours in a single workday.

Can an employer average your hours over a two-week pay period?

No. Under federal law, overtime must be calculated on a 7-day, 168-hour workweek basis. An employer cannot balance 48 hours in week 1 with 32 hours in week 2 to avoid paying overtime.

How do bonuses affect overtime pay?

Non-discretionary bonuses (such as productivity, attendance, or retention bonuses) must be added to your weekly straight-time wages to calculate your regular rate before computing your overtime premium.

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