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Out of stock sales Calculator

See how much you are potentially losing when you have an out of stock product

💰 Revenue Calculator

Discover how much you could earn with Notify Me

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🔔 Back in Stock Revenue $0
⏰ Preorder Revenue $0
❤️ Wishlist Revenue $0
💎 Total Monthly Revenue $0
💡 Calculation Methodology: Based on industry averages including 3-5% notification signup rate, 20-25% conversion for back-in-stock alerts, 15-20% for preorders, and 8-12% for wishlists.
Learn how to minimize lost sales with Shopify back in stock and preorder widgets of Notify Me. Discover why customers abandon their carts, the contributing factors, and actionable strategies using insights from your store’s data.

What This Calculator Means

The following terms used in this calculator have the meanings set forth below:
  1. “Monthly Store Visitors”: refers to the average 12-month traffic of your store from all the channels.
  2. "Average Order Value" refers to the the average amount of money a customer spends per purchase, calculated by dividing the total revenue by the number of orders within a specific period.
  3. “Out of Stock Rate (%)” refers to the percentage of products in an inventory that are unavailable for purchase at a specific time

Frequently asked questions

What is a Shopify lost revenue calculator?
It estimates how much revenue you may have missed when best-selling products were out of stock, using your numbers for demand, price, and stockout days.
How accurate is the lost revenue estimate?
It is a directional model, not a guarantee. Use it to size the problem and prioritize back-in-stock alerts, preorders, and inventory planning.
How do I reduce lost sales from stockouts on Shopify?
Combine forecasting, safety stock, and automated back-in-stock and preorder flows so you capture demand even when a variant is temporarily unavailable.
Does Notify Me! help after I run the numbers?
Yes. Notify Me!™ is built to recover demand with back-in-stock, preorder, low-stock, and wishlist notifications directly in Shopify.
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