Shift staffing calculator
Estimate how many people you need on shift and in roster to cover hours without burning the team or inflating payroll.
for a quick staffing signal
buffer for weekends & leave
starter business types
Shows baseline concurrent staffing and a rough roster size from hours and shift length.
Shift parameters
How many people must be on the floor at the same time?
Recommended roster
0 people
Why headcount math matters
Headcount drives service speed, revenue, and burnout. Too few people means queues and churn; too many inflates payroll and margin.
The calculator uses site hours and shift length, then applies a roster coefficient for weekends, leave, and replacements.
Payroll totals follow from headcount. ShiftBox ties schedules to worked hours so you see cost by person and site.
Seasonality and peak hours change reality—treat this as a baseline, then refine with actual demand signals in ShiftBox.
Want roster and payroll from real shifts?
ShiftBox connects planned shifts, actual hours, and load so headcount reflects what really happens—not only a formula.