E-commerce Profit Margin Calculator
Determine the true profitability of your products by accounting for sourcing, shipping, transaction fees, and marketing costs.
Profit Margin = Net Profit / Selling Price.
Markup = Net Profit / Total Costs.
🏆 E-Commerce Profit Margins Explained
Everything you need to know about using this calculator and the math behind it.
How it Works
Calculates the percentage of revenue that remains after deducting the cost of goods sold (COGS). It helps sellers price their products correctly.
The Formula
Profit Margin = ((Revenue - COGS) / Revenue) × 100
Pro Tip
A healthy e-commerce net margin is typically between 10% and 20%. Ensure you account for shipping, packaging, and platform fees in your COGS.
Frequently Asked Questions
What's the difference between gross margin and net margin? +
Gross margin is revenue minus the direct cost of goods sold (manufacturing, materials, shipping to you) — it shows production efficiency. Net margin deducts all costs: advertising, platform fees (Shopify, Amazon), returns, customer service, and overhead. Net margin is the true indicator of profitability. A high gross margin can still result in a negative net margin if operating costs are out of control.
What should I include in Cost of Goods Sold (COGS)? +
COGS includes the product cost (manufacturing or wholesale price), inbound shipping to your warehouse, packaging materials, labeling, and direct labor to prepare items. It does NOT include advertising, SaaS fees, your own salary, or customer service costs — those are operating expenses. Many beginners underestimate COGS by forgetting packaging and inbound freight.
How do I price products to hit my target margin? +
Use this formula: Price = COGS ÷ (1 − Desired Margin). For a 40% gross margin on a $10 product: $10 ÷ 0.6 = $16.67 selling price. Then add operating costs to check net margin. Many e-commerce sellers use a 3× COGS rule as a starting point (33% gross margin), but premium or niche products can support much higher multiples.
What fees should dropshippers account for? +
Dropshippers often forget: Shopify/WooCommerce subscription ($39–$399/month), payment processing (Stripe/PayPal ~2.9% + $0.30), platform ads (Facebook, Google — often 15–30% of revenue), supplier platform fees (DSers, Zendrop), return shipping, and chargeback reserves. All of these eat into margins and must be modeled before launching a product.
Is Amazon FBA margin different from direct-to-consumer (DTC)? +
Yes, significantly. Amazon FBA charges referral fees (8–15% of selling price), FBA fulfillment fees ($3–$6+ per unit depending on size/weight), and storage fees. Many products end up with 50–60% of revenue going to Amazon costs before your COGS. DTC via your own Shopify store has lower per-transaction fees but requires you to drive your own traffic, making ad spend the dominant cost.