Calculator Inputs
Example Data Table
| Scenario | Labor | Shift Hours | Pick Rate | Dock Doors | Units/Pallet | Net Throughput |
|---|---|---|---|---|---|---|
| Baseline | 18 | 8 | 95 | 6 | 48 | 10,357.78 Cases/day |
| Peak Season | 24 | 10 | 102 | 8 | 52 | 18,878.54 Cases/day |
| Dock Limited | 22 | 8 | 100 | 4 | 44 | 7,384.41 Cases/day |
Formula Used
These formulas estimate practical daily throughput by combining labor output, dock capacity, utilization, and quality performance.
Effective Hours = Shift Hours - (Break Minutes / 60)Labor Capacity = Labor Count x Effective Hours x Pick Rate
Dock Pallet Capacity = Dock Doors x Effective Hours x Pallets per Door Hour
Shipping Pallets = Dock Pallet Capacity x (1 - Receiving Share)
Dock Unit Capacity = Shipping Pallets x Units per Pallet
Gross Daily Capacity = minimum(Labor Capacity, Dock Unit Capacity)
Net Throughput = Gross Daily Capacity x Utilization x Accuracy
Orders per Day = Net Throughput / Units per Order
The minimum function matters because the slower resource becomes the operating constraint for the entire warehouse flow.
How to Use This Calculator
- Enter the planned shift length and total break minutes.
- Add the active warehouse labor assigned to picking and movement.
- Enter pick rate, dock doors, and pallets each door can process hourly.
- Set product conversion values, such as units per pallet and units per order.
- Reserve dock share for receiving if outbound shipping does not use all doors.
- Adjust utilization and accuracy to reflect realistic operating conditions.
- Click the calculate button to see throughput results above the form.
- Download results as CSV or PDF for planning discussions.
Frequently Asked Questions
1. What does warehouse throughput measure?
It measures how much inventory your warehouse can process over a set period. This can be cases, cartons, pallets, or orders per shift or day.
2. Why is utilization included?
Perfect theoretical capacity rarely happens. Utilization adjusts for travel time, congestion, meetings, equipment delays, and other real operating losses.
3. Why does the calculator use the minimum of labor and dock capacity?
The bottleneck controls total flow. If labor can pick more than docks can ship, dock capacity limits throughput. The reverse also applies.
4. Can I use this for receiving operations?
Yes. You can adapt the inputs for receiving by changing unit labels, dock share assumptions, and expected handling rates for inbound work.
5. What is a good pick rate?
A good pick rate depends on product size, travel distance, storage design, and automation. Use your own measured rate for reliable planning.
6. Should I include temporary workers?
Yes, if they are actively contributing during the shift. Lower their productivity assumptions if training, travel time, or error rates differ.
7. Can this calculator support scenario planning?
Yes. Change labor, doors, shift hours, or utilization to compare baseline, peak season, and constrained scenarios before operational decisions.