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Amazon Reorder Point & Restock Calculator
Know exactly when to place your next purchase order and how many units to buy, so you never stock out or overpay for storage.
Your reorder plan
Enter daily sales and lead time.
- Place the order by—
- Safety stock—
- Stock lasts—
- Runs out on (no reorder)—
Formulas
How the plan is calculated
Read the full restock planning guide for seasonality, capacity limits and the low-inventory-level fee.
Frequently asked questions
What is a reorder point?
The reorder point is the stock level at which you should place your next purchase order. It equals daily sales × lead time, plus safety stock. When your available stock drops to that number, it is time to order.
How much safety stock should I keep for Amazon?
Many sellers keep 2 to 4 weeks of sales as safety stock, more for long sea-freight lead times or volatile demand. Running out on Amazon can cost organic rank, so the cost of too little is usually higher than the cost of a little extra.
What lead time should I use?
Use the full time from placing the order to units being available to sell at Amazon: production, freight, customs, any warehouse step and Amazon receiving. Sea freight often adds up to 60 to 90 days in total.
Does this account for Amazon capacity limits?
No. Check your FBA capacity limits in Seller Central before sending a large shipment, and consider holding stock in AWD or a 3PL if you are close to your limit.
Restock planning for every SKU
Sotrics forecasts restocks from your live Amazon sales and inbound shipments.
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