Overtime Calculator: How to Calculate Overtime Pay

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Calculating overtime pay correctly is essential for both employers and employees. Whether you're an hourly worker trying to verify your paycheck or a business owner ensuring compliance with labor laws, understanding overtime calculations can save you from costly mistakes and legal issues.

Under federal law, most employees are entitled to overtime pay when they work more than 40 hours in a workweek. But the rules can get complicated quickly—especially when you factor in state laws, different pay rates, and exemption categories.

This comprehensive guide breaks down everything you need to know about overtime pay, from basic calculations to state-specific variations and common pitfalls to avoid.

Understanding Overtime Pay Basics

Overtime pay is additional compensation required by law for hours worked beyond the standard workweek. The concept exists to discourage employers from overworking employees and to fairly compensate workers for extended hours.

The federal standard, established by the Fair Labor Standards Act (FLSA) in 1938, requires employers to pay non-exempt employees at least 1.5 times their regular hourly rate for any hours worked over 40 in a single workweek. This is commonly called "time and a half."

Key terms you need to know:

Pro tip: Your employer defines the workweek, and it must remain consistent. It could start on Sunday, Monday, or any day—but once established, it can't be changed to avoid paying overtime.

The FLSA 1.5x Overtime Rule

The Fair Labor Standards Act establishes the baseline overtime requirements that apply across all 50 states. Here's what you need to know about the federal standard:

The basic formula:

Overtime Rate = Regular Hourly Rate × 1.5
Overtime Pay = Hours Over 40 × Overtime Rate
Total Weekly Pay = (40 × Regular Rate) + Overtime Pay

The FLSA overtime rule applies when an employee works more than 40 hours in a single workweek. It's important to note that this is calculated weekly, not daily or bi-weekly. Working 50 hours one week and 30 hours the next doesn't average out—you're still entitled to 10 hours of overtime for the first week.

What counts as "hours worked":

What typically doesn't count:

Quick tip: If you're paid a salary but still eligible for overtime (non-exempt salaried employee), your regular hourly rate is calculated by dividing your weekly salary by the number of hours it's intended to cover—typically 40 hours.

How to Calculate Overtime Pay Step-by-Step

Calculating your overtime pay doesn't have to be complicated. Follow these steps to determine your total compensation for any workweek:

Step 1: Determine your regular hourly rate

If you're paid hourly, this is straightforward—it's your base pay rate. If you're salaried, divide your weekly salary by 40 (or the number of hours your salary is intended to cover).

Step 2: Count your total hours worked

Add up all compensable hours worked during the workweek. Include regular shifts, any extra hours, and time spent on work-related activities.

Step 3: Identify overtime hours

Subtract 40 from your total hours worked. The remainder is your overtime hours (if you worked more than 40 hours).

Step 4: Calculate your overtime rate

Multiply your regular hourly rate by 1.5. This is your overtime rate.

Step 5: Calculate overtime pay

Multiply your overtime hours by your overtime rate.

Step 6: Calculate total pay

Add your regular pay (40 hours × regular rate) to your overtime pay.

Let's walk through a practical example to see how this works in real life.

Real-World Example Calculations

These examples demonstrate how to calculate overtime pay in various scenarios you might encounter:

Example 1: Standard Overtime Week

Sarah works as a retail associate earning $18 per hour. Last week, she worked 47 hours.

Example 2: Heavy Overtime Week

Marcus is a warehouse worker making $22 per hour. During a busy week, he worked 58 hours.

Example 3: Salaried Non-Exempt Employee

Jennifer is a salaried assistant manager earning $800 per week. She's classified as non-exempt and worked 50 hours this week.

Example 4: Multiple Pay Rates

David works two different positions at the same company: 30 hours at $16/hour as a cashier and 15 hours at $20/hour as a supervisor (45 total hours).

Pro tip: When you work multiple jobs for the same employer at different rates, your overtime rate must be calculated using a weighted average of all rates. This ensures fair compensation across all your roles.

Overtime Pay Quick Reference Tables

Use these tables to quickly estimate your overtime pay without doing the math yourself. These calculations assume standard 1.5x overtime rates.

Table 1: Overtime Rates and Pay by Hours

Hourly Rate OT Rate (1.5x) 5 OT Hours 10 OT Hours 15 OT Hours 20 OT Hours
$12.00 $18.00 $90.00 $180.00 $270.00 $360.00
$15.00 $22.50 $112.50 $225.00 $337.50 $450.00
$18.00 $27.00 $135.00 $270.00 $405.00 $540.00
$20.00 $30.00 $150.00 $300.00 $450.00 $600.00
$25.00 $37.50 $187.50 $375.00 $562.50 $750.00
$30.00 $45.00 $225.00 $450.00 $675.00 $900.00
$40.00 $60.00 $300.00 $600.00 $900.00 $1,200.00
$50.00 $75.00 $375.00 $750.00 $1,125.00 $1,500.00

Table 2: Total Weekly Pay with Overtime

Hourly Rate 45 Hours 50 Hours 55 Hours 60 Hours
$15.00 $712.50 $825.00 $937.50 $1,050.00
$20.00 $950.00 $1,100.00 $1,250.00 $1,400.00
$25.00 $1,187.50 $1,375.00 $1,562.50 $1,750.00
$30.00 $1,425.00 $1,650.00 $1,875.00 $2,100.00
$40.00 $1,900.00 $2,200.00 $2,500.00 $2,800.00

For precise calculations tailored to your specific situation, use our Overtime Calculator tool.

Understanding Double Time Pay

Double time pay means earning twice your regular hourly rate—a 2x multiplier instead of the standard 1.5x overtime rate. While federal law doesn't require double time, several states mandate it under specific circumstances.

When double time applies:

In California, the most comprehensive double time state, employees earn 2x their regular rate for:

Some union contracts and collective bargaining agreements also include double time provisions for:

Double time calculation example:

Maria works in California and earns $24/hour. On Monday, she worked a 14-hour shift.

Quick tip: If you're covered by both state law and a union contract, you're entitled to whichever provision is more favorable to you. Your employer must apply the rule that results in higher pay.

State-Specific Overtime Laws

While federal law sets the baseline, many states have enacted their own overtime laws that provide additional protections. When state and federal laws differ, employers must follow whichever law is more favorable to the employee.

States with daily overtime requirements:

State Daily OT Threshold Weekly OT Threshold Double Time
Federal (FLSA) None After 40 hours Not required
California After 8 hours After 40 hours After 12 hrs/day or 8 hrs on 7th day
Alaska After 8 hours After 40 hours Not required
Colorado After 12 hours After 40 hours Not required
Nevada After 8 hours (if under $18/hr) After 40 hours Not required

Notable state-specific provisions:

California: Has the most employee-friendly overtime laws in the nation. In addition to daily overtime, California requires overtime for the first 8 hours on the seventh consecutive workday and double time thereafter.

Alaska: Requires overtime for hours over 8 in a day, but only for employees working in certain industries. The state also has a unique provision for overtime after 40 hours per week.

Nevada: Daily overtime