Working-hours calculator
Work out your total working hours per week and per year, from your daily hours, working days and holiday allowance.
Result
Working hours per year
Working hours per week
How to use this tool
- Enter your typical hours per day and working days per week.
- Enter the holiday weeks to subtract from your annual estimate; use the allowance that applies to your own schedule and location.
- Read your weekly and annual working hours.
Assumptions
- Uses a 52-week year and subtracts only the holiday weeks entered. Assumes consistent hours and days each working week; it does not automatically account for public holidays, sick leave, overtime or irregular schedules.
Technical details: what the fields mean
- Hours per day
hoursPerDay - Your typical working hours in a day.
- Days per week
daysPerWeek - How many days a week you work.
- Holiday weeks per year
holidayWeeksPerYear - Holiday weeks per year to subtract. Allowances and how they are expressed vary by location, employer and work pattern; enter your own figure.
Methodology
Weekly hours = hours per day × days per week. Annual hours = weekly hours × (52 − holiday weeks).
Worked example
Illustrative inputs: 8 hours/day, 5 days/week, 5.6 holiday weeks
Inputs: Hours per day: 8, Days per week: 5, Holiday weeks per year: 5.6
Result: 40.0 hours/week, 1,856 hours/year. The 5.6 weeks is an example input, not a universal allowance.
Practical guidance
- Use this alongside a salary figure to work out an effective hourly rate for comparison purposes.
Common mistakes
- Forgetting to subtract holiday weeks, which overstates true annual working hours by roughly 10%.
FAQs
How are annual working hours estimated?
Weekly hours are multiplied by 52 minus the holiday weeks you enter. The estimate does not automatically subtract public holidays or account for sick leave, overtime or irregular schedules; enter a holiday allowance that matches your own arrangement.
Last reviewed: 2026-10-11
A consistent weekly pattern is projected across 52 weeks, less the holiday weeks entered. Public holidays, sick leave, overtime and irregular schedules are not modelled automatically.
This tool provides an indicative estimate, based on the assumptions stated above.
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