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24/7 Staffing CalculatorCalculate continuous-coverage headcount, relief staffing, and your current staffing gap.Staffing FeasibilityCheck whether the staff you have can cover the weekly assignment demand.Work / Rest CalculatorCompare recurring work/rest rotations against your staffing requirement.Shift Coverage CalculatorFind shortages by shift instead of relying on total headcount alone.Workforce OptimizerCompare capacity and rotation options before building a person-level schedule.
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Home/Free tools/24/7 Staffing Calculator
Continuous coverage staffing

24/7 Staffing Calculator

Use this calculator when you know how many positions must stay covered and need to translate that requirement into base FTE and a more realistic staffing target.

All free toolsStart RoleSchedule free
Use this whenTurn positions, operating hours, weekly employee hours, and relief allowance into a practical headcount target.

No signup is required. The interactive inputs and result stay on this page.

Interactive tool

Enter your scheduling assumptions

Change the inputs and the result updates immediately. Keep the assumptions realistic—the output is only as useful as the staffing model you give it.

Quick scenariosStart with a continuous post count, then adjust the assumptions below.
Result

2 more employees needed

Continuous 24/7 coverage · 20 recommended
Recommended headcount20Rounded whole-person target
Base FTE16.817 people before relief
Relief staffing+315% unavailable allowance
Weekly coverage672 hrsTotal labor hours that must be covered
Expected availability85%After relief allowance
Current staffing gap2 short18 employees entered
How this result was calculated4 positions × 24 hours/day × 7 days = 672 coverage hours/week. 672 ÷ 40 employee hours = 16.8 base FTE. After 15% unavailable time, the requirement becomes 19.76 FTE, rounded up to 20 people.

This answers the headcount question for continuous coverage. It does not yet decide the best shift rotation, assign specific people, or prove that qualifications, rest, absences, and day-by-day coverage all work.

Turn this headcount target into a real coverage scheduleSave the team, recurring requirements, eligibility, absences, work limits, and published schedule in one workspace.
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How it is calculated

Method

Weekly coverage hours = positions required at once × coverage hours per day × days per week. Base FTE = weekly coverage hours ÷ weekly hours per employee. Relief-adjusted FTE = base FTE ÷ expected availability.

Worked example

Example

Four continuously staffed positions create 672 coverage hours each week. At 40 hours per employee that is 16.8 base FTE before any relief allowance is applied.

Interpret the result

What the answer means

Use the result as a capacity-planning baseline. Round to real people, then test whether the roster can absorb leave, qualifications, role restrictions, and uneven availability.

Important limit

What this tool does not prove

This is a planning estimate. It does not prove that a person-level roster can satisfy qualifications, shift handoffs, absences, labor rules, or minimum-rest requirements.

Use this tool to

Answer the planning question before assigning names

Calculate how many employees you need for 24/7 coverage, including weekly hours and a relief allowance for leave, training, and absences.

01

See total weekly coverage hours before headcount is rounded.

02

Separate mathematical base FTE from a relief-adjusted recommendation.

03

Change operating hours, days, or weekly employee hours to compare scenarios.

The next layer

Capacity math cannot see every person-level scheduling constraint

A staffing model can be mathematically feasible and still fail when only certain people are qualified for a role, approved absences remove key people, assignments overlap, rest windows are too short, or coverage changes on specific dates. Those are the checks RoleSchedule keeps attached to the schedule itself.

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Related tools

Keep pressure-testing the staffing model

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Staffing feasibility

Can My Staff Cover This Schedule?

Compare weekly assignment demand with the real weekly capacity of the staff you have.

Open free tool →Rotation planning

Work / Rest Cycle Calculator

Test 4-on/2-off, 4-on/3-off, 5-on/2-off, 3-on/3-off, and other recurring rotations against your staffing requirement.

Open free tool →Minimum headcount

Minimum Staffing Calculator

Translate required operating hours into base FTE and a rounded minimum staffing target.

Open free tool →Relief staffing

Staffing Relief Factor Calculator

Adjust base FTE for predictable unavailable time and see the resulting recommended headcount.

Open free tool →
RoleSchedule

Turn recurring staffing requirements into a schedule your team can actually follow.

Keep the roster, assignment rules, weekly planning, coverage review, and published schedule connected instead of rebuilding context across several files.

Product

Product overviewAuto-Assign & rulesRole-based schedulingAccess controlPricing

Use Cases

Team Scheduling Software for Role-Based CoverageScheduling Software for Security & Site OperationsScheduling Software for Field & Service OperationsScheduling Software for Continuous OperationsScheduling Software for Multi-Team Operations

Resources

Resource libraryFree scheduling toolsFree Excel duty rosterCoverage scheduling guideScheduler checklistSpreadsheet scheduling guideDocumentationContact

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