Overtime Pay Calculator: Know Your Rights & Earnings

March 31, 2026 · 12 min read

Understanding overtime pay is crucial for both employees and employers. Whether you're picking up extra shifts to boost your income or managing a team's labor costs, knowing exactly how overtime is calculated — and what laws protect workers — can save you thousands of dollars annually.

The average American worker who qualifies for overtime earns an additional $6,000 to $12,000 per year through overtime hours. Yet many employees don't fully understand their rights, and some employers struggle with compliance. This comprehensive guide breaks down everything you need to know about overtime pay, from federal regulations to state-specific rules.

Use our free overtime calculator to instantly compute your overtime earnings and verify you're being paid correctly.

FLSA Overtime Rules Explained

The Fair Labor Standards Act (FLSA) is the federal law governing overtime pay in the United States. Enacted in 1938 and updated regularly, the FLSA establishes minimum wage, overtime pay eligibility, recordkeeping, and child labor standards affecting full-time and part-time workers in the private sector and in federal, state, and local governments.

Under FLSA, covered non-exempt employees must receive overtime pay at a rate of not less than 1.5 times their regular rate of pay for all hours worked over 40 in a workweek. This is the baseline federal requirement that applies across all states, though many states have additional protections.

Core FLSA Overtime Requirements

• 40-hour threshold: Overtime kicks in after 40 hours in a workweek, not a pay period. A workweek is defined as a fixed, recurring 168-hour period (seven consecutive 24-hour periods).
• No maximum hours: There is no federal limit on the number of hours an employee aged 16 or older can work in a week. However, all hours beyond 40 must be compensated at the overtime rate.
• Workweek basis: Overtime is calculated on a workweek-by-workweek basis. You cannot average hours across multiple weeks (except for hospital and residential care facility employees under Section 7(j) of the FLSA).
• Salary threshold: As of July 1, 2024, the salary threshold for overtime exemption is $43,888 per year ($844 per week). Employees earning below this threshold are generally entitled to overtime, regardless of job duties.

What Counts as "Hours Worked"

For overtime calculation purposes, "hours worked" includes all time an employee is required to be on duty, on the employer's premises, or at a prescribed workplace. This includes:

• Regular work hours and scheduled shifts
• Mandatory meetings, training sessions, and briefings
• Time spent traveling between job sites during the workday
• Short breaks (typically 5-20 minutes)
• Time spent putting on or removing required safety equipment
• On-call time when you're required to remain on the employer's premises

Time that generally does NOT count includes meal breaks of 30 minutes or more (if you're completely relieved of duties), commuting time from home to work, and voluntary training outside regular hours that's not job-related.

Time-and-a-Half Calculation

The most common overtime rate is "time and a half" — 1.5 times your regular hourly rate. This is the minimum federal requirement, though some situations may call for higher rates.

Basic Formula

Overtime Rate = Regular Hourly Rate × 1.5
Overtime Pay = Overtime Rate × Overtime Hours Worked
Total Pay = (Regular Hours × Regular Rate) + Overtime Pay

Step-by-Step Example

Let's say you earn $20 per hour and work 48 hours in a week:

1. Calculate regular pay: 40 hours × $20 = $800
2. Calculate overtime rate: $20 × 1.5 = $30 per hour
3. Calculate overtime hours: 48 total hours - 40 regular hours = 8 overtime hours
4. Calculate overtime pay: 8 hours × $30 = $240
5. Calculate total weekly pay: $800 + $240 = $1,040

Quick Reference Table

Use our hourly rate calculator to determine your effective hourly rate if you're paid a salary, then apply the overtime multiplier.

Double Time Rules

Double time pay — compensation at twice your regular hourly rate — is not required by federal law. However, some states mandate double time in specific circumstances, and many employers offer it as a benefit or through union contracts.

When Double Time May Apply

State requirements: California requires double time for hours worked beyond 12 in a single day, and for hours worked beyond 8 on the seventh consecutive day of work in a workweek.

Company policy: Many employers voluntarily pay double time for holidays (Christmas, Thanksgiving, New Year's Day) or for extremely long shifts as an incentive.

Union contracts: Collective bargaining agreements often include double time provisions for specific situations like Sunday work, holidays, or excessive overtime.

Double Time Calculation Example

If you earn $25/hour and work 14 hours in a single day in California:

• First 8 hours: 8 × $25 = $200 (regular pay)
• Next 4 hours: 4 × $37.50 = $150 (time-and-a-half)
• Final 2 hours: 2 × $50 = $100 (double time)
• Total daily pay: $450

Exempt vs. Non-Exempt Employees

Not all employees are entitled to overtime pay. The FLSA classifies workers as either "exempt" or "non-exempt" from overtime requirements. Understanding your classification is essential to knowing your rights.

Non-Exempt Employees

Non-exempt employees are entitled to overtime pay for hours worked over 40 in a workweek. Most hourly workers fall into this category, but some salaried employees are also non-exempt.

Characteristics of non-exempt employees:

• Must be paid at least minimum wage for all hours worked
• Entitled to overtime pay at 1.5× regular rate for hours over 40/week
• Can be paid hourly, salary, piece rate, or commission
• Employer must keep detailed time records

Exempt Employees

Exempt employees are not entitled to overtime pay, regardless of how many hours they work. To qualify as exempt, an employee must meet specific criteria related to salary level, salary basis, and job duties.

Three tests for exemption:

1. Salary level test: Must earn at least $844 per week ($43,888 annually) as of July 2024. This threshold is scheduled to increase to $1,128 per week ($58,656 annually) on January 1, 2025.
2. Salary basis test: Must be paid a predetermined fixed salary that doesn't vary based on quality or quantity of work.
3. Duties test: Job duties must primarily involve executive, administrative, professional, computer, or outside sales work as defined by the FLSA.

Common Exempt Categories

Misclassification Issues

Employee misclassification is one of the most common wage and hour violations. If you're classified as exempt but don't meet all three tests, you may be entitled to back pay for unpaid overtime.

Red flags for potential misclassification include:

• Being paid a salary below the threshold but told you're exempt
• Having a manager title but spending most time on non-managerial tasks
• Being required to track hours despite exempt classification
• Having pay docked for partial-day absences (violates salary basis test)

State-Specific Overtime Laws

While the FLSA sets the federal baseline, many states have enacted their own overtime laws that provide greater protections. When state and federal laws differ, the law that is most favorable to the employee applies.

States with Daily Overtime Requirements

Most states follow the federal standard of overtime after 40 hours per week. However, several states require overtime pay for hours worked beyond a certain number in a single day:

• California: Overtime after 8 hours/day or 40 hours/week; double time after 12 hours/day
• Alaska: Overtime after 8 hours/day or 40 hours/week
• Nevada: Overtime after 8 hours/day (if daily rate is less than 1.5× minimum wage) or 40 hours/week
• Colorado: Overtime after 12 hours/day or 40 hours/week

States with Higher Salary Thresholds

Some states have set higher salary thresholds for overtime exemption than the federal standard:

Seventh-Day Overtime Rules

California has unique rules for consecutive workdays. If you work seven consecutive days in a workweek, the first 8 hours on the seventh day are paid at time-and-a-half, and any hours beyond 8 on that seventh day are paid at double time — regardless of total weekly hours.

This means a California employee could work 40 hours Monday-Saturday, then work 10 hours on Sunday, and earn 8 hours at 1.5× and 2 hours at 2× for Sunday's work, even though their weekly total is only 50 hours.

Weekly vs. Daily Overtime

Understanding the difference between weekly and daily overtime calculations is crucial, especially if you work in a state with daily overtime requirements.

Weekly Overtime (Federal Standard)

Under federal law and in most states, overtime is calculated solely on a weekly basis. You're entitled to overtime pay only when you exceed 40 hours in a workweek, regardless of how those hours are distributed across days.

Example: You work 12 hours Monday, 10 hours Tuesday, 10 hours Wednesday, and 8 hours Thursday (40 total hours). Under federal law, you receive no overtime pay because you didn't exceed 40 hours for the week.

Daily Overtime (State-Specific)

In states with daily overtime requirements, you earn overtime for hours beyond the daily threshold, even if your weekly total is under 40 hours.

Example (California): Same schedule as above. You'd earn overtime for:

• Monday: 4 hours overtime (12 - 8 = 4)
• Tuesday: 2 hours overtime (10 - 8 = 2)
• Wednesday: 2 hours overtime (10 - 8 = 2)
• Thursday: 0 hours overtime
• Total: 8 hours of overtime pay despite working only 40 hours for the week

Salary Equivalent for Overtime

Calculating overtime for salaried non-exempt employees requires an extra step: determining the regular hourly rate from the salary. This is necessary because overtime must be paid at 1.5× the regular rate, not 1.5× the salary.

Converting Salary to Hourly Rate

The standard method divides the weekly salary by 40 hours to get the regular hourly rate:

Regular Hourly Rate = Weekly Salary ÷ 40 hours
Overtime Rate = Regular Hourly Rate × 1.5

Detailed Example

Let's say you're a salaried non-exempt employee earning $800 per week, and you work 50 hours in a week:

1. Calculate regular hourly rate: $800 ÷ 40 = $20/hour
2. Calculate overtime rate: $20 × 1.5 = $30/hour
3. Calculate overtime hours: 50 - 40 = 10 hours
4. Calculate overtime pay: 10 × $30 = $300
5. Calculate total weekly pay: $800 (salary) + $300 (overtime) = $1,100

Fluctuating Workweek Method

Some employers use an alternative calculation called the "fluctuating workweek" method for salaried non-exempt employees. Under this method:

• The employee receives a fixed salary for all hours worked, whether 30 or 50
• The regular rate changes each week based on hours worked
• Overtime is paid at 0.5× the regular rate (not 1.5×) because the salary already covers 1× for all hours

This method is only legal if certain conditions are met, including a clear mutual understanding that the salary covers all hours worked and that overtime will be paid at half the regular rate.

Example: $800 weekly salary, 50 hours worked:

1. Regular rate this week: $800 ÷ 50 = $16/hour
2. Overtime premium: $16 × 0.5 = $8/hour
3. Overtime pay: 10 hours × $8 = $80
4. Total pay: $800 + $80 = $880

Note that this method results in lower total pay than the standard method, which is why it requires explicit agreement and proper documentation.

Calculating Complex Overtime Scenarios

Real-world overtime calculations can get complicated when multiple pay rates, bonuses, or shift differentials are involved. Here's how to handle common complex scenarios.

Multiple Pay Rates

If you work at different pay rates during the same workweek (e.g., $20/hour for regular duties, $25/hour for specialized work), your overtime rate must be based on a weighted average of all rates.

Calculation method:

1. Calculate total earnings for the week at all rates
2. Divide by total hours worked to get weighted average rate
3. Multiply weighted average by 1.5 for overtime rate
4. Pay overtime hours at this rate

Example: You work 30 hours at $20/hour and 15 hours at $25/hour (45 total hours):

1. Earnings: (30 × $20) + (15 × $25) = $600 + $375 = $975
2. Weighted average: $975 ÷ 45 = $21.67/hour
3. Overtime rate: $21.67 × 1.5 = $32.50/hour
4. Overtime pay: 5 hours × $32.50 = $162.50
5. Total pay: $975 + $162.50 = $1,137.50

Shift Differentials

Shift differentials (extra pay for evening, night, or weekend shifts) must be included when calculating the regular rate for overtime purposes.

Example: Base rate $18/hour, night shift differential $2/hour, worked 48 hours all on night shift:

1. Regular rate: $18 + $2 = $20/hour
2. Regular pay: 40 × $20 = $800
3. Overtime rate: $20 × 1.5 = $30/hour
4. Overtime pay: 8 × $30 = $240
5. Total: $1,040

Non-Discretionary Bonuses

Non-discretionary bonuses (production bonuses, attendance bonuses, safety bonuses) must be included in the regular rate calculation. This can require retroactive overtime adjustments.

Example: You earn $20/hour, work 50 hours/week for 4 weeks, then receive a $400 monthly production bonus:

1. Regular earnings: 160 hours × $20 = $3,200
2. Overtime already paid: 40 hours × $30 = $1,200
3. Add bonus to regular earnings: $3,200 + $400 = $3,600