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Stockout Cost Calculator

What does running out of a bestseller actually cost, in lost revenue and lasting algorithm damage?

Shopify Google Shopping Meta Ads
Total cost of this stockout
$17,955
Lost profit + wasted ad spend + recovery drag
Lost revenue (direct)
$19,110
Lost gross profit
$9,555
Wasted ad spend during stockout
$4,200
Clicks on a product they can't buy
Reduced efficiency during recovery
$4,200
~50% efficiency drop while algos relearn
Why stockouts are so expensive on hero SKUs: Google Shopping pauses your bestseller's auction position; Meta CBO yanks spend out of the asset group; Klaviyo flows trigger on out-of-stock alerts. When you restock, all of that algorithmic momentum has to rebuild — and it takes weeks. The "Ad-algo recovery" line is often larger than the direct lost-revenue line.

About this tool

Stockouts cost more than the missed orders. They drop your Google Shopping impression share, kill Meta CBO learning, and customer trust takes weeks to rebuild even after restock. This tool estimates direct lost revenue, ad-channel learning loss, and SEO velocity impact.

The hidden tax: algorithm recovery

A stocked-out SKU loses its position in PMax and Meta Advantage+ ranking immediately. When you restock, the campaigns have to relearn what conversion looks like for that SKU at the new traffic profile. For 7+ day stockouts, expect 2–4 weeks of degraded efficiency before ROAS returns to baseline. This is often 2–3× the direct revenue loss.

Damage control during stockout

  • • Pause paid traffic to the SKU (don't pay for clicks they can't buy)
  • • Set availability to out_of_stock in your feed so Google de-prioritises rather than disapproves
  • • Switch the PDP to a back-in-stock email capture (preserves intent)
  • • Redirect retargeting audiences to a related in-stock SKU
  • • Stagger the restock launch — slow ramp of paid spend over 1–2 weeks

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