Whether you’re an hourly employee or an employer running payroll, knowing how to calculate overtime pay is essential. In most countries, any hours worked beyond 40 per week (or 8 per day) qualify for overtime — typically paid at 1.5x the regular hourly rate. This guide walks you through every formula with real examples, plus a free overtime pay calculator.
What Is Overtime Pay?
Overtime pay is the additional compensation an employee receives for working more than the standard working hours. In the United States, the Fair Labor Standards Act (FLSA) mandates that non-exempt employees receive at least 1.5 times their regular rate for every hour worked beyond 40 hours per workweek.
How to Calculate Overtime Pay — Step by Step
Step 1: Find Your Regular Hourly Rate
If you are a salaried employee, divide your weekly salary by your standard weekly hours:
Regular Hourly Rate = Weekly Salary ÷ Standard Hours Example: $800 ÷ 40 = $20/hour
Step 2: Calculate Your Overtime Rate
Overtime Rate = Regular Hourly Rate × 1.5 Example: $20 × 1.5 = $30/hour overtime rate
Step 3: Calculate Total Overtime Pay
Overtime Pay = Overtime Rate × Overtime Hours Worked Example: $30 × 8 overtime hours = $240 overtime pay
Step 4: Calculate Total Weekly Pay
Total Pay = Regular Pay + Overtime Pay Example: $800 + $240 = $1,040 total weekly pay
Overtime Pay Formula
The standard overtime pay formula used globally:
Overtime Pay Calculator
| Regular Rate | Overtime Hours | Overtime Pay (1.5x) | Total Weekly Pay (40 reg hrs) |
|---|---|---|---|
| $10/hr | 5 hrs | $75 | $475 |
| $15/hr | 5 hrs | $112.50 | $712.50 |
| $20/hr | 10 hrs | $300 | $1,100 |
| $25/hr | 8 hrs | $300 | $1,300 |
| $30/hr | 12 hrs | $540 | $1,740 |
Double Time vs Overtime — What’s the Difference?
Some states (like California) require double time pay (2x the regular rate) for hours exceeding 12 in a single workday or for all hours worked on the 7th consecutive workday.
| Pay Type | Multiplier | When Applied |
|---|---|---|
| Regular Pay | 1x | First 40 hours/week |
| Overtime Pay | 1.5x | Hours 41+ per week (US federal) |
| Double Time | 2x | Hours 12+ per day (California) |
How to Calculate Overtime for Salaried Employees
Salaried employees can also earn overtime if they are classified as non-exempt under FLSA rules. Here’s how to calculate their overtime:
Regular Rate = Annual Salary ÷ 52 weeks ÷ 40 hours Example: $52,000 ÷ 52 ÷ 40 = $25/hour Overtime Rate = $25 × 1.5 = $37.50/hour
Overtime Rules by Country
| Country | Standard Hours | OT Rate |
|---|---|---|
| USA | 40 hrs/week | 1.5x |
| Canada | 44 hrs/week | 1.5x |
| UK | 48 hrs/week (avg) | No legal minimum |
| India | 48 hrs/week | 2x |
| Australia | 38 hrs/week | 1.5x – 2x |
Frequently Asked Questions
Is overtime calculated daily or weekly?
In the US, overtime is calculated weekly (over 40 hours per week) under federal FLSA rules. However, some states like California calculate overtime daily (over 8 hours per day).
How is overtime calculated for part-time workers?
Part-time workers only qualify for overtime once they exceed the standard threshold (40 hours/week in the US). Working 30 hours one week as a part-timer does not trigger overtime pay.
Does overtime apply to salary workers?
Only non-exempt salaried employees qualify for overtime. In the US, employees earning more than $684/week are generally considered exempt (as of 2024 FLSA updates).
How do I calculate overtime pay in Excel?
Use this formula: =IF(TotalHours>40, (40*RegularRate)+((TotalHours-40)*RegularRate*1.5), TotalHours*RegularRate)
Tips to Track Overtime Correctly
- Use a digital time tracking app (Toggl, Clockify, or QuickBooks Time)
- Keep records of exact start and end times each day
- Review pay stubs every payday to verify overtime calculations
- Know your state/country-specific overtime laws — they may differ from federal rules
Conclusion
Calculating overtime pay is straightforward once you know your regular hourly rate and the applicable multiplier. The standard formula — Regular Rate × 1.5 × Overtime Hours — covers most situations in the US and many other countries. Use our free online calculators to instantly compute your overtime earnings, total weekly pay, and annual income with overtime included.