Free inventory control tool
Stock Coverage Days Calculator
Estimate how many sales days your current and incoming stock can cover.
BuyPlan
Enter your data
Estimated stock coverage
50 days
Units sold in 30 days: 300 units
This is a management baseline. Combine it with MOQ, case packs, variability and actual supplier lead times.
Why measure days of cover?
Days of cover turns units into time and makes products easier to compare. Coverage below lead time signals stockout risk; unusually high coverage can signal excess stock.
Coverage days = (on-hand + incoming stock) ÷ daily sales
Transparent calculations show why each product enters the plan
Start with a sample of only 10–30 SKUs
The browser demo processes your file locally and does not upload it
One calculator is a start. A purchase plan needs the full picture.
The BuyPlan demo combines stock, demand, incoming orders, lead time, MOQ, case packs and budget, then ranks items by urgency.
Beta 1.4.0 · 14-day free trial · No credit card or automatic billing · Unsigned installer