Israel Lopez Consulting
Free Tools

Operations math, made visual.

Small, interactive tools for the inventory and ERP problems we see every week. They run entirely in your browser — nothing is uploaded and no data leaves the page.

All free tools

Inventory Reorder Point Visualizer

See the inventory reorder cycle in motion. Model demand and lead-time variability, set your selling days, then compare a quantity-based reorder policy against a time-based (days-of-cover) one — right in your browser.

InventoryReorder Point(s, S) policySafety StockOpen the tool →