Work Hours Calculator Formula
Understand the math behind the work hours calculator. Each variable explained with a worked example.
Formulas Used
Total Work Hours
total_hours = net_hours_day * workdaysTotal Earnings
total_earnings = net_hours_day * workdays * hourly_rateTotal Break Time
break_hours_total = break_minutes / 60 * workdaysVariables
| Variable | Description | Default |
|---|---|---|
workdays | Number of Workdays | 22 |
hours_per_day | Hours Per Day(hrs) | 8 |
break_minutes | Daily Break Time(min) | 60 |
hourly_rate | Hourly Rate (optional)(USD/hr) | 30 |
net_hours_day | Derived value= hours_per_day - break_minutes / 60 | calculated |
How It Works
How to Calculate Work Hours
Subtract break time from daily hours, then multiply by the number of workdays.
Formula
Net Daily Hours = Hours Per Day - Break Minutes / 60
Total Hours = Net Daily Hours x Workdays
Worked Example
22 workdays, 8-hour days with 60-minute lunch, earning $30/hr.
- 01Net hours per day = 8 - 60/60 = 7.0 hours
- 02Total work hours = 7.0 x 22 = 154.0 hours
- 03Total earnings = 154.0 x $30 = $4,620.00
- 04Total break time = 1.0 x 22 = 22.0 hours
Frequently Asked Questions
Are breaks paid or unpaid?
This depends on your employer and local laws. Typically, short breaks (under 20 min) are paid, while meal breaks (30+ min) are unpaid. This calculator subtracts break time from work hours.
How many workdays are in a month?
A typical month has 20-23 workdays, depending on the number of weekdays and holidays. The average is about 21.7 workdays per month.
How many work hours are in a year?
A standard work year is 2,080 hours (40 hours/week x 52 weeks). After subtracting holidays and vacation, the actual number is often 1,900-2,000 hours.
Ready to run the numbers?
Open Work Hours Calculator