First identify whether the week is reduced or compressed
A reduced-hours proposal lowers total weekly work hours, such as moving from 40 hours over five days to 32 hours over four days. A compressed proposal fits substantially the same weekly hours into fewer, longer days. Both can be called a four-day week, but they do not create the same time result.
Enter weekly hours and workdays independently. Do not treat a missing commute day as proof that total committed time fell: longer workdays can offset part or all of that saving.
| Field | Reduced-hours proposal | Compressed-hours proposal |
|---|---|---|
| Total weekly work hours | Lower than the comparison schedule | Substantially the same, redistributed across fewer days |
| Workdays and daily hours | Record both; fewer days do not define the category | Fewer days generally mean longer entered workdays |
| Annual pay and paid weeks | Use the proposal terms; do not assume pay is preserved | Use the proposal terms; do not infer pay from the label |
| Commute pattern | Record days, minutes and direct cost separately | A saved commute day does not prove fewer total committed hours |
- Current and proposed annual pay
- Actual weekly work hours for each schedule
- Workdays per week and paid weeks per year
- Round-trip commute minutes and direct commute cost per workday
Worked comparison: same pay, fewer weekly hours
The production fixture compares 80,000 annual pay in both schedules. The current schedule is 40 hours over five days; the proposal is 32 hours over four days. Both use 52 paid weeks, 60 round-trip commute minutes and 10 currency units of commute cost per workday.
| Measure | Current schedule | Proposed schedule |
|---|---|---|
| Annual pay | 80,000 | 80,000 |
| Weekly hours and days | 40 hours, 5 days | 32 hours, 4 days |
| Annual committed hours | 2,340 | 1,872 |
| Annual pay difference | — | 0 |
| Annual committed hours saved | — | 468 |
| Annual commute cost saved | — | 520 |
| Adjusted hourly value difference | — | +8.55/hour |
Read each output before reaching a conclusion
The 468-hour saving combines the difference in work hours and commute hours. The 520 saving is direct commute cost, not the value of time. Zero pay difference confirms only that the entered annual pay is equal. The 8.55 hourly difference divides pay after commute costs by each schedule’s committed hours.
These outputs answer different questions. A schedule can save commute cost without reducing weekly work hours, or improve hourly value while changing annual pay. Keep those trade-offs visible instead of turning them into one winner score.
Stress-test the hours and keep qualitative effects outside the score
Change proposed weekly hours first. Testing 32 hours and then a compressed 40-hour week shows how much of the result comes from reduced work time rather than one fewer commute day. Also test proposed pay and commute assumptions if they are still being negotiated.
Work intensity, schedule control, handover expectations, productivity, wellbeing and legal entitlement are not priced by this Global calculation. Record them alongside the numeric comparison and check any local employment rules separately.
How the Four-Day Workweek Calculator calculation works
annualHoursSaved = currentCommittedHours − proposedCommittedHours
- annualHoursSaved
- Annual committed hours saved
- currentCommittedHours
- The current Committed Hours
- proposedCommittedHours
- The proposed Committed Hours
The calculator and article use this relationship consistently; the article does not reimplement the calculation.
annualCommuteCostSaved = currentCommuteCostPerDay × currentWorkDaysPerWeek × paidWeeksPerYear − proposedCommuteCostPerDay × proposedWorkDaysPerWeek × paidWeeksPerYear
- annualCommuteCostSaved
- Annual commute cost saved
- paidWeeksPerYear
- Paid weeks per year
- currentAnnualPay
- Current annual pay
- currentWeeklyWorkHours
- Current weekly hours
- currentWorkDaysPerWeek
- Current workdays
- currentCommuteMinutesPerDay
- Current daily commute minutes
- currentCommuteCostPerDay
- Current daily commute cost
- proposedAnnualPay
- Proposed annual pay
- proposedWeeklyWorkHours
- Proposed weekly hours
- proposedWorkDaysPerWeek
- Proposed workdays
- proposedCommuteMinutesPerDay
- Proposed daily commute minutes
- proposedCommuteCostPerDay
- Proposed daily commute cost
The calculator and article use this relationship consistently; the article does not reimplement the calculation.
annualPayDifference = proposedAnnualPay − currentAnnualPay
- annualPayDifference
- Annual pay difference
- paidWeeksPerYear
- Paid weeks per year
- currentAnnualPay
- Current annual pay
- currentWeeklyWorkHours
- Current weekly hours
- currentWorkDaysPerWeek
- Current workdays
- currentCommuteMinutesPerDay
- Current daily commute minutes
- currentCommuteCostPerDay
- Current daily commute cost
- proposedAnnualPay
- Proposed annual pay
- proposedWeeklyWorkHours
- Proposed weekly hours
- proposedWorkDaysPerWeek
- Proposed workdays
- proposedCommuteMinutesPerDay
- Proposed daily commute minutes
- proposedCommuteCostPerDay
- Proposed daily commute cost
The calculator and article use this relationship consistently; the article does not reimplement the calculation.
commuteAdjustedHourlyValueDifference = proposedCommuteAdjustedHourlyValue − currentCommuteAdjustedHourlyValue
- commuteAdjustedHourlyValueDifference
- Adjusted hourly value difference
- paidWeeksPerYear
- Paid weeks per year
- currentAnnualPay
- Current annual pay
- currentWeeklyWorkHours
- Current weekly hours
- currentWorkDaysPerWeek
- Current workdays
- currentCommuteMinutesPerDay
- Current daily commute minutes
- currentCommuteCostPerDay
- Current daily commute cost
- proposedAnnualPay
- Proposed annual pay
- proposedWeeklyWorkHours
- Proposed weekly hours
- proposedWorkDaysPerWeek
- Proposed workdays
- proposedCommuteMinutesPerDay
- Proposed daily commute minutes
- proposedCommuteCostPerDay
- Proposed daily commute cost
The calculator and article use this relationship consistently; the article does not reimplement the calculation.
Compare 40 hours over five days with 32 hours over four days at the same annual pay.
Inputs used in the Four-Day Workweek Calculator worked example
| Input | Entered value | What it represents | Source class |
|---|---|---|---|
| Paid weeks per year | 52 weeks/year | Paid weeks used for both schedules. | user record |
| Current annual pay | 80,000 currency units/year | Gross annual pay for the current schedule. | user record |
| Current weekly hours | 40 hours/week | Weekly work hours in the current schedule. | user record |
| Current workdays | 5 days/week | Workdays per week in the current schedule. | user record |
| Current daily commute minutes | 60 minutes/day | Round-trip commute minutes per workday. | user record |
| Current daily commute cost | 10 currency units/day | Direct commute cost per workday. | user record |
| Proposed annual pay | 80,000 currency units/year | Gross annual pay for the proposed schedule. | user decision |
| Proposed weekly hours | 32 hours/week | Weekly work hours in the proposed schedule. | user decision |
| Proposed workdays | 4 days/week | Workdays per week in the proposed schedule. | user decision |
| Proposed daily commute minutes | 60 minutes/day | Round-trip commute minutes per proposed workday. | user decision |
| Proposed daily commute cost | 10 currency units/day | Direct commute cost per proposed workday. | user decision |
Worked example: Four-Day Workweek Calculator
The calculator normalizes the inputs above, applies Committed-time comparison, and returns the outputs below. The displayed result is therefore reproducible in the linked calculator.
| Measure | Result | Interpretation |
|---|---|---|
| Annual committed hours saved | 468 hours/year | Current committed hours minus proposed committed hours. |
| Annual commute cost saved | 520 currency units/year | Current annual commute cost minus proposed cost. |
| Annual pay difference | 0 currency units/year | Proposed annual pay minus current annual pay. |
| Adjusted hourly value difference | 8.55 currency units/hour | Proposed minus current commute-adjusted hourly value. |
Interpret the result and test Proposed weekly hours
- Annual committed hours saved: 468 hours/year. Current committed hours minus proposed committed hours.
- Annual commute cost saved: 520 currency units/year. Current annual commute cost minus proposed cost.
- Annual pay difference: 0 currency units/year. Proposed annual pay minus current annual pay.
- Adjusted hourly value difference: 8.55 currency units/hour. Proposed minus current commute-adjusted hourly value.
| Result | Baseline | Changed-input scenario | How to read it |
|---|---|---|---|
| Annual committed hours saved | 468 hours/year | 301.60 hours/year | Current committed hours minus proposed committed hours. |
| Annual commute cost saved | 520 currency units/year | 520 currency units/year | Current annual commute cost minus proposed cost. |
| Annual pay difference | 0 currency units/year | 0 currency units/year | Proposed annual pay minus current annual pay. |
| Adjusted hourly value difference | 8.55 currency units/hour | 5.15 currency units/hour | Proposed minus current commute-adjusted hourly value. |
Checks that are specific to Four-Day Workweek Calculator
- Both schedules use the same paid weeks.
- Committed hours include work and commute time.
- Pay and weekly hours must be positive.
What this Four-Day Workweek Calculator guide includes and excludes
- Commute figures are round-trip per workday.
- Schedules repeat for every entered paid week.
- No tax or local work rule is applied.
Sources and method boundary
- Four-Day Workweek Calculator methodology — Wage101 (accessed 2026-07-27): Canonical formulas, units, validation, calculator behavior and limitations.