How the work can differ
These are common patterns, not rules for every employer or facility. A single distribution center may use several methods in different departments.
DIFFERENT WORK, DIFFERENT NUMBERS
Grocery vs. retail vs. e-commerce warehouse picking
A case selector building store pallets, a retail replenishment picker and an e-commerce picker may all be called warehouse pickers. Their assignments can look very different, so their productivity numbers are not automatically comparable.
| Factor | Grocery distribution | Retail replenishment | E-commerce fulfillment |
|---|---|---|---|
| Typical assignment | Store-bound cases and mixed pallets | Store replenishment cases, cartons or units | Customer orders, often with smaller quantities |
| Possible work units | Cases, pallets or weighted work | Cases, cartons, lines or units | Units, order lines or completed orders |
| Handling demands | Pallet stability, product weight, temperature zones | Mixed merchandise sizes and store routing | Many distinct items, scans and accuracy checks |
| Travel and equipment | Often pallet-jack routes or voice-directed case picking | Varies from pallet work to carts and conveyors | Varies from walking pick paths to automated stations |
| Why raw rates differ | Case size, travel, stacking and zone conditions | Merchandise mix, travel and replenishment rules | Order size, item density, batching and scan steps |
Why 150 cases/hour is not the same as 150 units/hour
A case may contain multiple individual units, while an order line can request one unit or many. Different measures count different work. Even two cases/hour numbers may reflect different travel distances, product weights, equipment and time rules.
To compare shifts fairly, first match the unit, counted time, completed work and assignment type. Our pick-rate formula guide explains the difference between cases, lines and units.
What matters when comparing two jobs?
Ask about the work unit, training period, equipment, temperature conditions, accuracy requirements, handling expectations and whether performance uses a fixed or engineered standard. Do not assume a higher published rate means an easier or better-paying job.
For personal tracking, record what you actually complete and use a consistent clock definition. The free calculator can show your raw pace, but it cannot recreate a company-specific score.
Keep safety and accuracy in the comparison
Safe equipment use, correct product selection and stable loads matter in every setting. A raw speed number alone does not measure these requirements. Follow site procedures and only enter work totals when it is safe to stop.