How to use this Safety Stock Calculator
Enter your ecommerce inputs and compare the calculated result with your target. Use conservative assumptions for fees, refunds, shipping, and demand.
Formula
This simple max-average method is practical for ecommerce operators who do not have enough data for statistical service-level models.
Safety stock purpose
FAQ
What does this calculator estimate?
Estimate safety stock using demand variability, lead time variability, and desired service level.
What formula does it use?
Safety Stock = Max Daily Sales × Max Lead Time − Average Daily Sales × Average Lead Time
Is this exact accounting?
No. This calculator is for planning and decision support. Your actual accounting may include taxes, refunds, chargebacks, fixed costs, and timing differences.
What should I do after calculating this?
Use the result to test pricing, shipping policy, ad spend, discounting, inventory, and retention assumptions before making operational changes.