Warehouse KPIs: What to Track and How to Calculate Them
Most buildings track too many numbers and post none of them. Warehouse KPIs only help when the right ones are measured the same way every day and the people doing the work can see them.
This guide covers the warehouse KPIs worth tracking, how to calculate each one, and how to choose the one to three that should run your floor.
The warehouse KPIs worth tracking
Here are twelve KPIs for warehouse operations, grouped by what they tell you. The formulas are the standard ones, so you can calculate them from data your WMS already has.
Accuracy
| KPI | How to calculate it | What it tells you |
|---|---|---|
| Picking accuracy | Lines picked correctly ÷ total lines picked × 100 | How often errors reach the customer or the returns bin |
| Inventory accuracy | Locations where the count matches the system ÷ locations counted × 100 | Whether you can trust the system to promise and find stock |
| Perfect order rate | Orders that are on time, complete, accurate, and undamaged ÷ total orders × 100 | The customer’s view of your whole operation in one number |
Speed and service
| KPI | How to calculate it | What it tells you |
|---|---|---|
| Dock-to-stock time | Average hours from receipt at the dock to stock available for picking | How fast inbound turns into sellable inventory |
| Order cycle time | Average time from order release to shipment | How long a customer waits on your building |
| On-time shipment rate | Orders shipped by the cutoff ÷ orders due × 100 | Whether you keep the promise to the carrier and the customer |
Productivity and cost
| KPI | How to calculate it | What it tells you |
|---|---|---|
| Units per labor hour | Units processed ÷ direct labor hours, by function | Throughput per person, and where labor is imbalanced |
| Labor cost per order | Total labor cost ÷ orders shipped | Whether productivity gains show up in the P&L |
| Space utilization | Storage positions in use ÷ positions available × 100 | Whether you are out of space or wasting it |
Inventory and safety
| KPI | How to calculate it | What it tells you |
|---|---|---|
| Inventory turnover | Cost of goods sold ÷ average inventory value | How quickly stock converts to sales and cash |
| Backorder rate | Backordered lines ÷ total lines ordered × 100 | How often demand outruns what you have |
| Recordable incident rate | Recordable cases × 200,000 ÷ total hours worked | Safety performance, using the OSHA recordkeeping method |
Pick one to three KPIs to run your floor
Tracking twelve numbers is reporting. Running a floor on one to three is a scoreboard. A good floor KPI passes three tests:
- People can move it in a shift. If nothing a team does today changes the number, it is not a floor KPI.
- It updates daily or faster. A monthly number cannot steer a Tuesday.
- It ties to something the customer or the business feels. Safety, service, and productivity or cost cover most buildings.
For an e-commerce building, that often means on-time shipment, units per labor hour, and a safety number. For a retail DC, it might be on-time store delivery, picking accuracy, and cost per unit. Your constraint should drive the choice. Our guide to the warehouse bottleneck shows how to find it.
I once drove into a plant and saw one number hanging from the roof: days without an accident, changed by hand every day. Before I walked in, I knew what that company cared about. That is what a scoreboard does. There is more in Are We Winning? The Power of a Leadership Scoreboard.
How to post your warehouse KPIs
- Put them where people walk, not in a dashboard nobody opens.
- Show today’s number next to the target, so people can tell if they are winning.
- Update them daily, by hand if you have to.
- Talk about them at every start-up meeting, two minutes, same time every day.
What targets should you use?
Targets vary by operation, product mix, and customer promise. Start with your own last 90 days as the baseline, set a target you can hit this quarter, and raise it after you hit it. Copying a benchmark from a blog post, including this one, before you know your baseline is how a number ends up ignored.
What to do when a KPI slips
A KPI tells you something is wrong. It does not tell you why. Work from the number back to the cause:
- Picking accuracy slips: check slotting, pick-face labeling, and scanning compliance. See warehouse picking accuracy.
- Inventory accuracy slips: tighten your counting. See cycle counting.
- Units per labor hour or cycle time slips: look for the constraint, and check how the items are slotted. See SKU slotting.
For more on the measurement side of supply chain, the CSCMP and WERC are good places to start.
What I see on the floor
Our quality number was 98.9%. Our goal was 99.8%. On a dashboard, that gap looks like rounding.
What changed the urgency was one question. We asked the team: if doctors delivered 98.9% of babies safely, would that be acceptable?
It wouldn’t be. Then we did the math. At 98.9%, we were making 11 errors per 1,000 orders. At 99.8%, it’s 2. That is more than five times fewer mistakes, and each one is a customer who got the wrong thing.
The percentage hid the problem. Once we talked about errors per thousand instead, people stopped treating the goal as a stretch and started treating it as the standard. Within 6 months, we reached 99.5%. Three months later, we hit the goal.
If you track an accuracy KPI, convert it to errors per 1,000 (or per 10,000) orders and post that number next to the percentage.
Not sure which three numbers matter in your building?
That is part of what the one-week operations review does. You send four standard exports, I walk the floor, and in five days you get a ranked list of where your building loses time and money, plus the first fixes. No equipment to sell.
Warehouse KPIs FAQ
What are warehouse KPIs?
Warehouse KPIs are measurable indicators of how well a warehouse performs. Common examples are picking accuracy, inventory accuracy, dock-to-stock time, order cycle time, units per labor hour, and on-time shipment.
How many KPIs should a warehouse track?
Track a handful in the office and post only one to three on the floor. People can act on a few numbers they can move in a shift, and they ignore a wall of metrics.
How do you calculate picking accuracy?
Divide the lines picked correctly by the total lines picked, then multiply by 100. Count errors that reach the customer or are caught at packing, and decide up front whether you measure by line, order, or unit.
What is perfect order rate?
Perfect order rate is the share of orders that are on time, complete, accurate, and undamaged. Divide the perfect orders by total orders and multiply by 100.
