What this calculator solves
Use Labor Capacity per Shift to translate workers, scheduled hours, productive utilization, and minutes per order into a planning throughput. It is a capacity ceiling under entered assumptions, not a guaranteed dispatch commitment. Order Packing Time estimates the duration of a known order count.
How to choose the inputs
Enter workers actually assigned to the process, paid shift length, and a productive-utilization rate derived from observed non-packing time. Use a representative pack time for the expected order mix. Do not use 100% utilization unless the defined shift truly excludes all nonproductive activity.
| Input | How to prepare it |
|---|---|
| Packing workers | Labor Capacity per Shift Calculator: Count packing workers in the exact operating unit shown on the dispatch or inventory record; do not mix eaches, packs, cases, or layers. |
| Shift hours | Labor Capacity per Shift Calculator: Use scheduled shift hours for the same shift boundary as the worker and utilization inputs. |
| Productive utilization | Labor Capacity per Shift Calculator: Base productive utilization on measured comparable work, state what the percentage covers, and review it when the process changes. |
| Minutes per order | Labor Capacity per Shift Calculator: Time minutes per order across representative normal work and separate setup, exceptions, and breaks unless the definition includes them. |
How the calculation works
- Validate the Labor Capacity per Shift Calculator manifest: confirm that packing workers, shift hours, productive utilization describe the same Labor Capacity per Shift Calculator pack, batch, or planning period.
- Calculate orders per shift: apply Capacity = workers × shift hours × 60 × utilization % ÷ minutes per order without rounding intermediate values for Labor Capacity per Shift Calculator.
- Review the orders per shift breakdown: use the primary result for the stated decision and the secondary values to identify the input or constraint driving this Labor Capacity per Shift Calculator result.
Worked example
Three workers on an eight-hour shift at 80% utilization and four minutes per order can plan 288 orders.
Next action: After: compare with demand and use Order Packing Time for specific release batches.
How to interpret the result
Compare planned demand with whole-order capacity and keep the unused productive minutes as a small buffer indicator. If demand is close to capacity, review breaks, replenishment, changeovers, and complexity mix. Adding workers may not scale linearly when space or equipment is constrained.
Common mistakes
- Treating paid time as fully productive time.
- Using a time standard from a different SKU mix.
- Assuming twice the workers always doubles output.
- Ignoring shared equipment, staging, or quality-check constraints.
Assumptions and limitations
The arithmetic assumes parallel productive minutes combine without interference and average pack time remains stable. It excludes congestion, fatigue, breaks, learning, absenteeism, equipment limits, queueing, and overtime effects.
Related workflow
- Before: observe utilization and pack time for the expected mix.
- After: compare with demand and use Order Packing Time for specific release batches.