What you will find here
The Inventory & Procurement calculator area groups the calculations used for recurring Inventory & Procurement decisions. Each page explains the model, shows the working inputs and connects the result to related tools and longer form guidance.
Inventory & Procurement calculators
Use this category when you already know the business question but need a consistent way to quantify it. Start with the closest calculator, check the definitions and move to the related pages when the decision requires more context.
Keep calculations comparable by using the same period, unit basis and definitions. A category page is an index into the models, not a substitute for reviewing the assumptions behind a result.
How to choose the right calculator
Begin with the decision, not the metric. Identify what you are trying to change, compare or validate, then select the calculator whose inputs match the question. When two models look similar, review their formula and output definition before choosing between them.
The category also includes variations for more specific searches. Those pages exist when the user intent changes materially, so long form explanations can address a narrower business context without turning one page into an overloaded reference.
SUBCATEGORIES
Narrow the library by subcategory.
Start with the broad category when the decision is still open. Choose a subcategory when you already know the part of the work that needs attention.
CALCULATOR LIBRARY
Inventory & Procurement calculators
Open the calculator that matches the decision you are reviewing. Focused sub-calculators are included where the broader model has a recurring narrower question.
Calculator
Inventory Carrying Cost Calculator
Inventory Carrying Cost uses average inventory value, carrying cost (%).
Calculator
Inventory Days of Supply Calculator
Inventory Days of Supply uses inventory units, average daily usage.
Calculator
Overstock Cost Calculator
Overstock Cost uses excess units, unit cost, holding cost (%).
Calculator
Purchase Order Lead Time Demand
Purchase Order Lead Time Demand uses lead time (days), daily requirement.
Calculator
Purchase Order Quantity Calculator
Use annual demand, ordering cost and holding cost to estimate an economic order quantity. This implementation does not round to supplier pack sizes.
Calculator
Reorder Point Calculator
Reorder Point uses average daily usage, lead time (days), safety stock.
Focused model
Safety Stock Calculator
Safety Stock uses average daily sales, safety-stock days.
Calculator
Stock Replenishment Budget Calculator
Stock Replenishment Budget uses units to replenish, unit cost, buffer (%).
Calculator
Stockout Cost Calculator
Stockout Cost uses units missed, contribution margin per unit.
Focused model
Supplier Comparison Calculator
Supplier Comparison uses units in each order, a unit price, a total freight.
Calculator
Supplier Lead Time Cost Calculator
Supplier Lead Time Cost uses daily units needed, supplier lead time (days), unit cost.
Calculator
Supplier MOQ Cash Requirement Calculator
Supplier MOQ Cash Requirement uses minimum order quantity, unit cost.
