Twelve calculators
Each one answers a question a warehouse, planning or logistics team actually hits, shows the formula it used with your numbers in it, and exports the result. All free, no sign-up, and everything runs on your own device.
Fill Rate Calculator
Line fill, unit fill and order fill side by side — the three numbers most teams confuse with each other.
Free toolSafety Stock & Reorder Point
Service-level driven safety stock with both demand and lead-time variability, plus the reorder point.
Free toolPallet & Truck Load Planner
Pallets per truck by both orientations, with a diagram and a clear call on whether volume or weight binds.
Free toolEOQ Calculator
Economic order quantity with the full total-cost curve, so you can see how flat the optimum really is.
Free toolABC–XYZ Classifier
Paste your SKU data, get a nine-box classification by value and demand volatility. Nothing is uploaded.
Free toolWarehouse Space & Racking
Pallet positions from floor area across selective, double-deep, drive-in and VNA configurations.
Free toolInventory Turns & DOH
Turns, days on hand and the working capital tied up in stock — with a benchmark by industry.
Free toolCycle Count Sample Size
Statistically defensible sample size with finite population correction — not a guess at 10%.
Free toolFreight Cost Comparator
Chargeable weight and cost per kg across modes, so air vs road vs rail is an actual comparison.
Free toolManpower & Productivity
Headcount required from volume, productivity standards and shift pattern — with absenteeism built in.
Free toolOTIF & Dock-to-Stock
On-time and in-full split apart, because the combined number hides which half is broken.
Free toolLanded Cost Calculator
FOB to landed, with GST shown separately as creditable rather than buried in the cost.
Free toolHow these fit together
They are not twelve unrelated gadgets. Most warehouse problems chain across several of them, and the tools are built to hand off to each other:
- Service problem? Start at fill rate to see which of the three measures is failing, then ABC–XYZ to find which items are causing it, then safety stock to fix the levels.
- Too much stock? Turns and DOH quantifies the cash trapped, ABC–XYZ shows where it sits, and EOQ corrects the order quantities.
- Running out of space? Space and racking tells you what the building can really hold before you sign for a bigger one — and turns is often the cheaper answer.
- Transport cost rising? Truck load shows whether you are shipping air, and the freight comparator whether you are paying for it.
- Sourcing decision? Landed cost for the true unit cost, then safety stock for what the longer lead time costs you permanently.
Every calculator page also has a worked example and a list of the mistakes that make the number wrong — which is usually more valuable than the arithmetic itself.
Get the free KPI starter pack
A ready-to-use Excel sheet with the 15 warehouse KPIs worth tracking, the formulas behind each, and a monthly review format. No cost, no catch.
One email with the file. No newsletter spam, unsubscribe any time.