Backorder Rate Calculator
Share of orders that could not ship on time.
Split shipment, expediting and support time.
Backorder rate
3.8%
45 of 1,200 orders
Above 3% erodes trust quickly where competitors can ship immediately.
How the Backorder Rate Calculator works
A backorder is a sale you have made but cannot yet deliver. Some customers wait; a meaningful proportion cancel. The rate is a demand-planning failure signal, and the cancellation share is what turns it into a revenue number.
Not financial advice. Marketplace fees change, and they vary by country, plan and seller status. Every rate here is an editable default, not a quoted price — check the platform's current fee schedule before you price a product against it. This is not tax or business advice.
Frequently asked questions
How is backorder rate calculated?
Backordered orders ÷ total orders × 100. 45 backorders out of 1,200 is a 3.75% rate. It can also be measured by units or by value, which matters when backorders cluster on high-value items.
What is an acceptable backorder rate?
Under 2-3% for most ecommerce. Higher rates erode trust quickly, particularly where competitors can ship immediately. In B2B with negotiated lead times, tolerance is considerably greater.
What do backorders cost?
Cancellations, expediting and split-shipment costs, extra customer service time, and reputational damage. A backorder that ships two weeks late having cost extra freight and two support emails frequently earns nothing.
Should I accept backorders at all?
For distinctive products with committed buyers, yes — it captures demand you would otherwise lose. For commodity items with easy substitutes, a backorder usually just delays a cancellation while consuming your time.