Inventory Calculators
Three browser-based calculators for the maths every inventory and ops team runs regularly: safety stock, reorder points, and working-capital ratios. Each one ships with the formula and links to the relevant glossary entries.
Safety Stock Calculator
Compute the buffer that protects against demand and supply variability. The simple Z × σ × √LT formula, or the full formula with lead-time variability.
Open safety stock calculatorReorder Point Calculator
Find the stock level at which to trigger the next PO. ROP = (D × LT) + Safety Stock, with days of safety stock as a sanity check.
Open reorder point calculatorInventory Turnover
Turnover = COGS / Average Inventory, with industry benchmarks built in: apparel, beauty, electronics, furniture, food, industrial.
Open turnover calculatorMore calculators coming
Next on the build queue: ABC analysis, XYZ analysis, and an excess stock calculator. If there's a calculation you run regularly in a spreadsheet and would prefer to use here, let us know.
Free templates and resources
Beyond the calculators: the templates and diagnostics scaling brands use.