Formula used
Reorder point = average daily sales multiplied by supplier lead time, plus safety stock.
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Inventory tool
Inventory Reorder Point Calculator
Balance stockout risk and cash flow by finding the exact inventory level where your next purchase order should be placed.
Reorder point504 units
Safety stock126 units
Days to reorder6.4
Inputs
Your inventory rhythm
Use recent sales velocity and realistic supplier lead times.
Your numbers stay in this browser. Free calculator inputs are not stored on our servers.
Purchase order trigger
504 units
Reorder when stock reaches 504 units. That covers 378 unitsof lead-time demand plus 126 units of safety stock.
StockoutReorder pointBuffered
StatusReorder window is close
Current coverage34.4 days
Safety stock formula
Lead-time demand378 units
Safety stock126 units
Reorder point504 units
- Plan the next purchase order in about 6.4 days at the current sales pace.
- Update average daily sales weekly during promotions, seasonal spikes, or ad spend changes.
Guide
How to use the reorder point calculator
Use this when a SKU is selling steadily and you need a purchase-order trigger that avoids both stockouts and cash-heavy overbuying.
Healthy benchmark
For stable products, a 5-14 day safety buffer is a practical starting point. Use a larger buffer for overseas suppliers, volatile demand, or launches driven by paid ads.
Common mistakes
- Using lifetime average sales instead of recent daily sales velocity.
- Ignoring supplier delays, customs, receiving time, or quality-control time.
- Buying extra inventory without checking runway and cash conversion timing.