Collision Cycle Time Calculator

Inputs

Completed ROs per month

Single shop volume. For MSOs, use per-shop average.

Average booked hours per RO

Labor hours written on the average estimate.

Productive technicians on the floor

Body + paint + frame combined. Helpers count as 0.5.

Effective labor hours per tech per day

Productive hours after breaks, training, rework. Industry avg 6–7.

Calendar cycle time (days, keys-to-keys)

From vehicle dropoff to customer pickup. Check CCC for your actual.

Carrier rental rate ($/day)

Daily rental cost the carrier is eating. $35–$55 typical.

Results

Monthly labor capacity (hours) —

Monthly labor demand (hours) —

Utilization —%

Touch time per RO (days) —days

Calendar vs touch delta —days

Rental-day cost per RO —

Monthly cycle-driven rental waste —

How the math works

Touch time = avg hours per RO ÷ (effective hours per day × 0.7 WIP parallelism factor). It estimates real bay-time, not calendar days.

Delta = calendar cycle – touch time. Every delta day usually means waiting on parts, approvals, or QC — and that's where cycle time is actually won or lost.

Rental waste = (delta days × rental rate × ROs). What the carrier is paying because the vehicle is sitting, not being worked on. DRP scorecards punish this.

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