TECHNICIAN EFFICIENCY CALCULATOR

Which number belongs to whom

Productivity is worked hours over available hours. It is a management number: it measures whether the shop kept the technician on a job at all. Idle bays, waiting on parts, waiting on an approval — all of it lands here, and none of it is the technician’s fault. The target is 80–90%.

Efficiency is billed hours over worked hours. It is a technician number: above 100% means beating book time, below means taking longer than the guide allows.

Proficiency is billed over available — the two combined, and the single clearest measure of what a technician returns on the payroll they cost.

The effective labor rate falls out of the same table

Labor sales divided by billed hours is the rate you actually realised. Compare it to the rate on the wall: the gap should stay within 5–10% of the posted door rate. Wider than that and something is eating it — discounts given at the counter, menu prices set below the door rate, comebacks re-done on the shop’s dime, or hours worked that never reached a line on an invoice.

The ELR guide covers what each of those looks like in the numbers and which one to chase first.

Reading it month over month

One month tells you almost nothing; three months tell you everything. Available hours are straightforward — they come off the same payroll figure the rate worksheet uses. Worked hours need a clock-on discipline your shop management software can enforce. Billed hours come off the invoices. If you cannot get worked hours reliably, track proficiency alone — it needs only two columns and it still moves when things go wrong.

Flat rate versus hourly

Under flat rate, a technician is paid billed hours, so efficiency is their income and productivity is their frustration. Under hourly pay, the shop carries the risk on both. Neither is universally right, but the pay model determines which of these three numbers a technician will optimise, and it is worth being deliberate about that. The mechanic pay guide has the wage bands and the trade-off.