E-commerce Return & Refund Cost Calculator
Measure the monthly profit your returns cost you and the margin you really keep after refunds.
How the Return & Refund Cost Calculator Works
A return is more expensive than it looks. You refund the sale, so you lose the profit you thought you made. You also pay to ship and process the return. If the product cannot be resold, you lose what you paid for it as well. Across hundreds of orders a month, these losses add up quickly.
Enter your monthly orders, average order value, gross margin, return rate, the cost of handling each return, and the share of returned items you cannot resell. The calculator assumes a full refund and shows the profit lost per return and per month, your net profit and effective margin after returns, and how many extra orders you would need to earn the lost profit back. The profit figures are before ad spend and overhead.
Key Formulas Behind This Tool
- Returned Orders: Monthly Orders x Return Rate %
- Product Cost per Order: Average Order Value x (1 - Gross Margin %)
- Profit Lost per Return: (AOV x Gross Margin %) + Return Handling Cost + (Unsellable % x Product Cost per Order)
- Monthly Profit Lost to Returns: Returned Orders x Profit Lost per Return
- Net Profit After Returns: (Monthly Orders x AOV x Gross Margin %) - Monthly Profit Lost to Returns
- Effective Margin After Returns: Net Profit After Returns / (Revenue - Revenue Refunded)
- Extra Orders Needed to Recover: Monthly Profit Lost / (Net Profit After Returns / Monthly Orders), rounded up
Frequently Asked Questions (FAQ)
How do returns reduce profit?
A refunded order removes the sale's gross profit. On top of that, you usually pay return shipping and handling, and any item that cannot be resold becomes a total loss of its product cost.
What is a normal e-commerce return rate?
It varies widely by category. Apparel and footwear often see double-digit return rates, while many other categories see single digits. Use your own store data, because averages hide big differences between products.
What does "% of returned items unsellable" mean?
It is the share of returned products you cannot put back into stock at full price because they are damaged, used, or expired. Those units lose their entire product cost, not only the margin.
What does "Orders Needed to Recover" show?
It shows how many extra orders you would have to win to earn back the profit that returns cost you. The calculation uses your average profit per order after returns, so the new orders also carry their own return rate.
How can I lower return costs?
Improve size guides and product photos, write more accurate descriptions, tighten packaging to prevent damage, use restocking fees where appropriate, and track the products with the highest return rates so you can fix or drop them.