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Labour Cost per Unit

Labour expense allocated to each unit produced — the basis for productivity benchmarking and automation justification.

Formula

Total Labour Cost ÷ Units Produced

Benchmarks

World-class: At or below standard labour cost Good: Within 10% of standard Typical: 10–20% above standard Poor: >20% above standard

What Is Labour Cost per Unit?

Labour Cost per Unit measures the total labour expense (direct and indirect) allocated to each unit of production. It is the key metric for productivity benchmarking and the primary input for automation investment decisions.

The Formula

Labour Cost per Unit = Total Labour Cost ÷ Units Produced

Where Total Labour Cost includes:

  • Direct labour (operators, technicians)
  • Indirect labour (supervision, support)
  • Benefits and overhead

Data Requirements

SourceRequiredWhat You Need
Machine DataYesProduction count
ERPYesLabour rates, benefits costs
MESYesLabour hours by operation, work assignments

Labour Cost per Unit is a Phase 3 metric — it requires MES and ERP integration for labour tracking.

Why It Matters

  • Productivity benchmarking — compare to standards, across shifts, and against competitors
  • Automation justification — ROI for labour-saving equipment
  • Staffing optimisation — right number and mix of workers
  • Process improvement guide — identify where to reduce labour content

Best Practices

  • Calculate by product for accurate costing
  • Track trends to identify productivity improvements or degradation
  • Include all labour costs (direct + indirect + benefits) for a complete picture
  • Use to justify automation investments — compare current labour cost per unit to projected cost with automation
  • Cost per Unit — labour is typically the second-largest component after materials
  • Rework Rate — rework increases effective labour cost per good unit
  • OEE — poor OEE means more labour hours per unit of output