CalcHub
Free Shopping CalculatorAs of 2026
Enter sales information
sales platform
Media fees (Direct editable)
%
Shipping fee (Direct editable)
%
Selling price
원
Received shipping fee
원
Purchase price (cost)
원
Shipping fee (delivery fee + packaging fee)
원
Fees are automatically applied when selecting a platform. Manual modification is also possible. If manual input is selected, it will be reset to 0%.
Calculation result
After entering sales information
Please click Calculate Margin.
Sales profit
—
—
Settlement amount—
Media fees—
Shipping fee—
purchase price—
shipping fee—
Sales profit—
Margin rate—
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What is a Margin Calculator?
It automatically reflects commissions by shopping mall platform to calculate actual sales profit and margin. Commissions can also be modified manually.
Margin calculation formula
Settlement Amount = Sales Price × (1 – Media Fee %) + Received Shipping Fee × (1 – Shipping Fee Commission %)
Sales Profit = Settlement Amount – Purchase Price – Shipping Cost
Margin = Sales Profit ÷ Sales Price × 100
Sales Profit = Settlement Amount – Purchase Price – Shipping Cost
Margin = Sales Profit ÷ Sales Price × 100
Major Platform Fees in 2026
Smart Store: Media 5.63% / Shipping 3.63%
Coupang: Media 11.881 TP3T / Delivery 3.301 TP3T
Gmarket: Media 14.30% / Delivery 3.30%
Auction: Media 14.30% / Shipping 3.30%
11st: Media 20.00% / Shipping 3.30%
Interpark: Media 15.00% / Shipping 3.30%
Today's House: Media 20.00% / Delivery 3.30%
Cafe24: Media 5.86% / Shipping 0%
Domaeguk/Domemae: Media 8.03% / Shipping 0%
Coupang: Media 11.881 TP3T / Delivery 3.301 TP3T
Gmarket: Media 14.30% / Delivery 3.30%
Auction: Media 14.30% / Shipping 3.30%
11st: Media 20.00% / Shipping 3.30%
Interpark: Media 15.00% / Shipping 3.30%
Today's House: Media 20.00% / Delivery 3.30%
Cafe24: Media 5.86% / Shipping 0%
Domaeguk/Domemae: Media 8.03% / Shipping 0%
Commission rates may vary depending on product categories and sales conditions. Please check the actual commission fees on each platform's Merchant Center. You can customize the calculation by directly editing the commission input field.
Frequently Asked Questions
What is the difference between margin and profit margin?
The margin rate is the ratio of profit to the selling price. If the selling price is 30,000 won and the profit is 5,000 won, the margin rate = 5,000 ÷ 30,000 × 100 = 16.71 TP 3 T. The profit margin (markup) is the ratio of profit to cost, and it is a different concept.
What is the Smart Store fee?
As of 2026, Smart Store fees consist of a media fee of 5.631 TP3T and a shipping fee of 3.631 TP3T. Additional fees may apply depending on the payment method and product category.
Can I change the fee directly?
Yes, after selecting a platform, you can directly modify the numbers in the media commission and shipping fee input fields. If they differ from the actual contracted fees, please adjust and recalculate them manually.