Work Hours Calculator
Know Exactly How Many Hours You Work Each Year
Most people know their shift times but have never added up the actual hours across a full year — accounting for breaks, days off, and vacation. That annual number is more important than it looks: it's the denominator in your true hourly rate calculation, and it's what determines how much of your life you're trading for your income.
How to Use This Calculator
Enter your shift start time, end time, and break duration. Set your days per week and weeks per year (use fewer than 52 if you have unpaid vacation or irregular schedules). Hit Calculate to see your daily, weekly, monthly, and annual hours in a single view.
How the Hours Are Calculated
The default schedule (9 AM to 5 PM, 30-minute break, 5 days, 52 weeks) gives 7.5 net hours/day × 5 days × 52 weeks = 1,950 hours/year — slightly under the commonly cited 2,080 because of the break deduction.
Real-World Example
Using the defaults — 9:00 AM to 5:00 PM, 30 min break, 5 days/week, 52 weeks:
- Gross shift: 8 hours
- Net daily hours (after break): 7.5 hours
- Weekly hours: 37.5 hours
- Monthly hours (avg): ~162.5 hours
- Annual hours: 1,950 hours
Reduce weeks to 50 (2 weeks vacation) and annual hours drop to 1,875. This matters if you're calculating your true hourly rate — a $75,000 salary divided by 1,950 hours = $38.46/hr, but the same salary across 1,875 hours = $40.00/hr.
The Standard Work Year — What It Actually Means
The commonly cited 2,080 hours/year (40 hours × 52 weeks) is a gross figure that assumes no breaks, no vacation, and no sick days. In reality:
- A 30-minute daily break on a 5-day week reduces 2,080 to 1,950 annual hours
- 2 weeks of paid vacation reduces the base to ~1,960 gross hours (40 × 49 weeks)
- Average US worker takes ~11 paid holidays/year — another ~88 hours off
- Realistic paid work hours for a typical full-time US employee: ~1,800–1,900/year
European workers average significantly fewer hours — many countries have mandatory minimums of 20–30 paid vacation days plus public holidays, resulting in 1,600–1,700 annual working hours.
Using Work Hours to Calculate Your True Hourly Rate
Your true hourly rate is your total annual compensation divided by your actual hours worked. This calculation reveals the real value of your time — and often looks different from what you'd expect:
- A $75,000 salary at 40 hrs/week, 52 weeks = $36.06/hr gross
- The same salary at 50 hrs/week = $28.85/hr — a $7/hr difference for the same pay
- Add commute time and the rate drops further
Use this calculator alongside the salary to hourly calculator to compare jobs with different schedules on an apples-to-apples hourly basis.
Frequently Asked Questions
Should I include unpaid breaks in my hours?
The calculator subtracts break time from your hours — which is the correct approach for calculating compensated time. If you want to know how long you're away from home or unavailable, don't subtract breaks. For payroll and income calculations, always use net hours (breaks excluded).
What if my schedule varies week to week?
Use your average hours per week. If you typically work 4 days some weeks and 5 days others, use 4.5 as your days-per-week figure. For highly variable schedules (gig work, seasonal employment), track actual hours for a representative month and multiply by 12 for the annual figure.
How do I account for paid holidays?
The simplest approach: subtract your holiday days from your annual working days. In the US, most employers offer 10–11 paid federal holidays. At 5 days/week, 10 holidays = 2 weeks off. Reduce "Weeks per Year" from 52 to 50, or set days/week to account for it. The key is to use the weeks and days that reflect actual working time for income calculations.
How is monthly hours calculated?
Monthly hours = annual hours ÷ 12. This gives an average monthly figure since months vary in working days. Some months have 23 working days; others have 19. For a specific month's hours, multiply the working days in that month by your net daily hours.
What's the difference between scheduled hours and billable hours?
Scheduled hours are the hours you're at work. Billable hours are the hours you can actually charge to clients — relevant for consultants, lawyers, and freelancers. For most salaried employees, the distinction doesn't apply. For freelancers, billable hours are typically 50–65% of scheduled hours once admin, marketing, and non-client time is accounted for. See the freelance rate calculator for a breakdown.