Aftermarket, Field Service & Service Parts worked example

Technician Utilization at 90% target technician utilization: a worked example in aftermarket, field service & service parts

What does the result look like when target technician utilization reaches 90%? The full calculation is worked below with real intermediate numbers. a field service manager needs to see whether technician capacity is being used at a sustainable level

The inputs for this scenario

  • Productive technician service hours: 2,860 hr (unchanged)
  • Available technician hours: 3,600 hr (unchanged)
  • Target technician utilization: 90 % (raised for this scenario; the documented default is 78)

Working through the calculation

  • Applying the documented formula (Technician utilization = productive service hours ÷ available technician hours × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 79.44 % utilization for technician utilization, the number this scenario is built around.
  • At this operating point the engine returns 10.56 percentage points for utilization gap to target.
  • At this operating point the engine returns 2,860 hr for productive service hours.
  • At this operating point the engine returns 3,600 hr for available technician hours.

How this compares with the baseline

  • Against the tool's baseline example, where target technician utilization sits at 78% and the headline result is 79.44 % utilization, this scenario lands almost exactly on the baseline at 79.44 % utilization.
  • A figure at this level is achievable when target technician utilization is genuinely sustained, not just peaked for a shift. Utilization says nothing about whether the productive hours were billable or whether the work was profitable — a tech can run at 95% utilization rebuilding the same unit three times for free.

Results at a glance

  • Technician utilization: 79.44 % utilization (headline result)
  • Utilization gap to target: 10.56 percentage points
  • Productive service hours: 2,860 hr
  • Available technician hours: 3,600 hr

Run it with your numbers

  • Every input above is editable in the live Technician Utilization calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.