Free inventory tool
Stock reorder calculator
Estimate how many days your current stock can cover, when to reorder, and whether your safety buffer is at risk.
How to calculate stock cover
Stock cover equals current units divided by average daily usage. Reorder timing should also include your safety buffer and supplier lead time.
- Current units: stock currently available.
- Average daily usage: normal daily sales, use, or movement.
- Buffer days: minimum days of stock you want available.
Use the live calculator
The calculator on the Risorra Labs homepage runs in your browser and does not submit inventory data.
From calculator to workflow
StockMitra turns the same logic into repeatable stock checks, item records, low-stock signals, and review history for teams.
