Manpower Planning: How to Measure Workforce Utilisation

Manpower is one of the most important resources in any business.

Whether a company operates a warehouse, manufacturing facility, hotel, dealership, service centre, retail operation, or corporate office, employees are required to keep daily operations running.

But simply knowing how many employees a business has is not enough.

A company may have 100 employees and still struggle with workload. Another business may have 70 employees performing the same volume of work more efficiently.

The difference often comes down to workforce utilisation.

Workforce utilisation helps businesses understand how effectively available employee capacity is being used against actual operational requirements.

The objective is not to keep employees busy every minute.

The objective is to understand whether manpower is properly aligned with workload, processes, operating hours, and business demand.

This is where effective manpower planning becomes important.

What Is Workforce Utilisation?

Workforce utilisation is a measure of how much of the available workforce capacity is being used for productive or required work.

A simplified formula can be:

Workforce Utilisation % = Productive Hours ÷ Available Working Hours × 100

For example, if an employee has 8 available working hours and spends 6 hours on productive operational activities:

6 ÷ 8 × 100 = 75% utilisation

However, the definition of “productive hours” should be carefully established for each business.

Meetings, training, administrative work, equipment checks, breaks, and other necessary activities may not be classified as direct productive time, but they may still be essential to operations.

Therefore, workforce utilisation should not be interpreted as simply:

Busy = Productive

Why Workforce Utilisation Matters

Manpower is a major operating cost for most businesses.

If staffing is significantly higher than actual workload, the company may carry unnecessary labour costs.

If staffing is too low, the business may experience:

Overtime
Delays
Employee fatigue
Poor customer service
Quality problems
Missed deadlines
Operational bottlenecks

Effective manpower planning attempts to find the balance between these two situations.

The objective is to have the right number of people, with the right skills, available at the right time.

Start With Actual Workload

Workforce planning should begin with workload, not headcount.

For example, a warehouse may need employees to handle:

Goods receiving
Put-away
Picking
Packing
Dispatch
Stock counting
Returns
Documentation

Instead of saying:

“We have 20 warehouse employees.”

Management should ask:

“How many hours of work are actually required to complete these activities?”

This creates a much more meaningful basis for manpower planning.

Calculate Available Workforce Capacity

The next step is to understand how much capacity the existing workforce provides.

For example:

10 employees
8 working hours per day
26 working days

Potential gross capacity:

10 × 8 × 26 = 2,080 hours per month

But this is only theoretical capacity.

Actual availability may be lower because of:

Weekly offs
Leave
Training
Meetings
Breaks
Absenteeism
Public holidays
Administrative activities

Therefore, businesses should calculate net available capacity rather than relying only on scheduled hours.

Measure Productive Hours

Once available capacity is understood, businesses can measure how much time is actually spent on productive work.

Depending on the operation, productive activities could include:

Production
Order processing
Picking
Packing
Customer service
Vehicle servicing
Inspection
Dispatch
Hotel housekeeping
Food preparation
Sales activities

The definition should be specific to the department.

A warehouse employee and a finance employee will naturally have different productivity measures.

Separate Productive and Non-Productive Time

Not every non-operational activity is unnecessary.

For example:

Training
Safety meetings
Quality inspections
Preventive maintenance
Team meetings
Documentation

may not directly generate output, but they can be essential.

Therefore, businesses should distinguish between:

Productive Time

Time spent directly performing the primary operational activity.

Support Time

Time required to enable productive work.

Avoidable Idle Time

Time lost due to preventable causes such as:

Waiting for materials
Waiting for approvals
Equipment downtime
Poor scheduling
Lack of work
Process bottlenecks

This distinction makes workforce analysis more useful.

Measure Utilisation by Department

Overall company utilisation can hide important differences.

For example:

Department	Utilisation
Warehouse	88%
Production	92%
Administration	65%
Customer Service	82%
Dispatch	74%

The overall workforce number may look acceptable, but individual departments may have very different capacity situations.

Department-level analysis helps management identify where manpower is:

Underutilised
Overloaded
Properly balanced
Misallocated

Measure Utilisation by Shift

Many businesses operate multiple shifts.

Workload may not be evenly distributed throughout the day.

For example:

Morning shift: High workload
Afternoon shift: Moderate workload
Night shift: Low workload

If staffing remains identical across all shifts, some employees may be underutilised while others are overloaded.

Shift-level workforce planning can help align staffing with actual demand.

This can be particularly useful for:

Warehouses
Hotels
Manufacturing
Hospitals
Retail
Logistics
Customer service operations

Consider Workload Variation

Workload is rarely constant.

A business may experience:

Peak seasons
Month-end activity
Festival demand
Promotional periods
Large customer orders
Seasonal production
Weekend demand

Using average workload alone can produce misleading manpower requirements.

For example, a warehouse may have moderate workload for most of the month but experience significantly higher activity during the last five days.

Manpower planning should account for these fluctuations.

Measure Output Per Employee

Utilisation tells you how much available capacity is being used.

Productivity tells you what output is being generated.

Depending on the operation, businesses can track:

Units produced per employee
Orders processed per employee
Lines picked per employee
Rooms cleaned per employee
Customers served per employee
Vehicles serviced per technician
Cases handled per employee

For example:

Productivity = Total Output ÷ Productive Labour Hours

This helps businesses understand whether additional manpower is genuinely required.

Analyse Overtime

High overtime is often an important manpower planning signal.

If employees regularly work beyond scheduled hours, management should ask:

Is workload consistently higher than available capacity?

Possible causes include:

Insufficient manpower
Poor shift allocation
Process inefficiency
Seasonal demand
Absenteeism
Unbalanced workload
Equipment constraints

Simply reducing overtime without understanding its cause may create operational problems.

Analyse Idle Time

The opposite problem is underutilisation.

Employees may spend significant time waiting because of:

Lack of work
Material shortages
System downtime
Approval delays
Poor scheduling
Equipment breakdown
Process dependencies

If idle time is recurring, the issue may not be the employees themselves.

The underlying process may be causing the capacity loss.

This is why workforce utilisation should be combined with process analysis.

Measure Absenteeism

Actual workforce availability is affected by employee absence.

A simple absenteeism rate can be calculated as:

Absenteeism Rate = Absent Workdays ÷ Planned Workdays × 100

High absenteeism can increase pressure on available employees and create overtime requirements.

It can also distort manpower calculations if staffing plans assume 100% attendance.

Historical absenteeism should therefore be considered when calculating practical workforce capacity.

Consider Skill-Based Utilisation

Headcount alone does not tell the complete story.

A company may have enough employees but still lack the required skills.

For example, a manufacturing facility may have 20 operators available but only 5 employees trained to operate a particular machine.

Similarly, a hotel may have enough employees overall but insufficient staff with the required skills for a specific department.

Manpower planning should therefore consider:

Skill
Experience
Certification
Training
Role requirements
Shift availability

The right manpower is not simply the right number of people.

It is the right combination of people and capabilities.

Identify Workload Imbalances

Workforce utilisation analysis can reveal situations where one employee or team is overloaded while another has available capacity.

For example:

Team A: 95% utilisation
Team B: 60% utilisation

Before hiring additional employees, management should ask whether some work can be redistributed.

This can improve workforce utilisation without immediately increasing headcount.

However, redistribution should consider skill requirements, workload complexity, and practical operational constraints.

Don’t Use Utilisation as a Standalone KPI

A high utilisation number is not automatically a sign of a healthy operation.

If a team consistently operates at extremely high capacity, it may indicate:

Insufficient manpower
Excessive workload
Lack of backup capacity
Increased overtime
Employee fatigue
Higher operational risk

Similarly, very low utilisation may indicate excess capacity or inefficient processes.

Workforce utilisation should therefore be reviewed alongside:

Productivity
Overtime
Quality
Absenteeism
Turnaround time
Customer service
Employee workload

Create a Workforce Utilisation Dashboard

Management can create a simple dashboard containing:

KPI	Purpose
Available Hours	Measures workforce capacity
Productive Hours	Measures direct work time
Utilisation %	Shows capacity usage
Output per Employee	Measures productivity
Overtime Hours	Identifies capacity pressure
Idle Hours	Identifies unused capacity
Absenteeism %	Measures workforce availability
Workload per Employee	Identifies workload distribution
Quality/Errors	Ensures productivity does not reduce quality