Free tool
Monthly Work Hours Calculator
8 is a usual full day. 7.5 is 7 hours 30 minutes.
Subtract days off that would have been workdays. Leave weekends off here if they are already toggled off.
Used for the average month: weekly hours × 52 ÷ 12.
Tired of calculating manually?
Track it automatically with WorkHours.
How this is calculated
This month’s total counts only the weekdays you select, multiplied by hours per day, minus holidays. Months are not the same length, so February is usually shorter than a 31-day month.
A repeating week is averaged as weekly hours × 52 ÷ 12. A 40-hour week is 173.33 hours a month. Multiplying by 4 (160 hours) leaves out the extra days, because a month is about 4.33 weeks, not 4.
Working days and hours per month in 2026 and 2027
Monday to Friday at 8 hours a day, before public holidays. Subtract the holidays that apply where you work.
| Month | 2026 days | 2026 hours | 2027 days | 2027 hours |
|---|---|---|---|---|
| January | 22 | 176 | 21 | 168 |
| February | 20 | 160 | 20 | 160 |
| March | 22 | 176 | 23 | 184 |
| April | 22 | 176 | 22 | 176 |
| May | 21 | 168 | 21 | 168 |
| June | 22 | 176 | 22 | 176 |
| July | 23 | 184 | 22 | 176 |
| August | 21 | 168 | 22 | 176 |
| September | 22 | 176 | 22 | 176 |
| October | 22 | 176 | 21 | 168 |
| November | 21 | 168 | 22 | 176 |
| December | 23 | 184 | 23 | 184 |
| Total | 261 | 2,088 | 261 | 2,088 |
Average monthly hours by weekly schedule
Weekly hours × 52 ÷ 12. Useful for salaries, contracts, and part-time planning.
| Hours per week | Average per month | Per year |
|---|---|---|
| 20 | 86.67 | 1,040 |
| 25 | 108.33 | 1,300 |
| 30 | 130.00 | 1,560 |
| 32 | 138.67 | 1,664 |
| 35 | 151.67 | 1,820 |
| 37.5 | 162.50 | 1,950 |
| 40 | 173.33 | 2,080 |
| 45 | 195.00 | 2,340 |
Full-time and part-time
A 40-hour week is the usual full-time schedule in the US: about 173 hours a month and 2,080 hours a year before vacation and holidays. Part-time schedules are often 20 to 30 hours a week, about 87 to 130 hours a month.
From hourly to monthly pay
Multiply the hourly wage by the average monthly hours. At $20 an hour on a 40-hour week: 173.33 × $20 = $3,466.67 a month before tax.
Common questions
How many work hours are in a month?
It depends on the weekdays and holidays. A 40-hour week averages 173.33 hours a month, because 40 × 52 ÷ 12 = 173.33. A specific month can be higher or lower.
Why not 4 × 40 = 160?
A month is not exactly four weeks. Fifty-two weeks divided by 12 months is about 4.33 weeks. 40 × 4.33 is 173.33 hours.
Are holidays removed automatically?
Only if you enter them. Count holidays that fall on a selected workday. Weekends are already excluded when Saturday and Sunday are turned off.
How many hours a year is full-time?
A 40-hour week is 2,080 hours a year (40 × 52). Paid vacation and public holidays are included in that figure, so the hours actually worked are lower.