Inventory & Planning Calculators
Size order quantities and buffers with the standard formulas, so the answer you bring to a planning meeting is reproducible instead of a gut feel.
Economic Order Quantity Calculator
The order size that minimises ordering plus holding cost.
Safety Stock Calculator
Buffer stock sized from demand and lead-time variability.
Reorder Point Calculator
The inventory level that should trigger replenishment.
How to use this section
These calculators share a set of definitions, which is why they are grouped together. If you are measuring a line for the first time, start with Economic Order Quantity Calculator and work outward — the numbers you collect there are the inputs the others need.
Each page states its own assumptions. Where a term could reasonably be defined two ways, the page says which definition it uses, so you can adjust before the number reaches a report.