What’s the cost or the opportunity?

Productivity Savings: Based on performance lift due to increased focus, reduced meetings, and energy gains. Calculated as % uplift of existing salary spend.
Turnover Savings: Assumes cost to replace an employee is 33% of salary. We estimate this based on your turnover reduction input.
Absenteeism Savings: Absenteeism typically costs 2% of total salary. Reduced absence = reclaimed cost.
Backfill Investment: For frontline shift roles, we estimate a 20% increase in workforce costs to maintain coverage across reduced weekly hours.
Net Business Impact: All estimated savings minus any investment to cover shifts. Your org’s actual results may vary—but this gives you a directionally strong benchmark.

What if your best performance didn’t come from pushing harder—but from giving people one day back? The 5th day isn’t a perk. It’s a productivity strategy. It’s a cultural reset. It’s a competitive edge. The question isn’t can you afford to do it? The question is: What’s it costing you not to?

Use the calculator below to estimate your savings from reduced burnout, better focus, higher retention and fewer Mondays spent chasing Friday’s mess.

4-Day Workweek ROI Calculator

Number of employees:

Average annual salary per employee (AUD):

Estimated productivity gain (%):
Typical range: 10–20%

Estimated turnover reduction (%):
Use 15–30% if aiming to improve retention

Estimated absenteeism reduction (%):
Use 10–25% based on similar org case studies

Do you need to backfill shifts to maintain operations?

📘 How We Calculate This

Click to view assumptions & definitions