About this tool
The Three Layers of Margin
1. Gross Margin: Revenue minus the physical cost of the widget (COGS). Usually highly deceptive.
2. Operating Margin: Gross Margin minus Shipping and Gateway Fees.
3. Net Margin: Operating Margin minus Advertising Spend. This is the only number that pays your mortgage.
ROAS (Return On Ad Spend) Explained
ROAS is how Google and Meta grade your marketing efficiency. ROAS = Gross Revenue / Advertising Cost
If you spend $10 on ads to sell a $50 product, your ROAS is a massive 5.0x. This calculator checks your inputs to reverse-engineer your current operating ROAS.
The Break-Even
The "Break-Even CPA" tells you exactly how much money remains in the transaction after product costs, supplier shipping, and gateway fees are paid. That remaining dollar amount is the maximum theoretical money you can give Mark Zuckerberg for an ad before you go bankrupt.
Practical Usage Examples
Quick Dropshipping Net Profit & ROAS Calculator test
Paste content to see instant cybersecurity results.
Input: Sample content
Output: Instant resultStep-by-Step Instructions
Step 1: Set the Top-Line Revenue: Input what your Shopify store charges the customer for the item, and if you are upcharging them for outbound shipping.
Step 2: Map the Supplier Bleed: Enter the absolute COGS (Cost of Goods Sold) your AliExpress/CJ Dropshipping supplier charges you, including their ePacket/UPS shipping fees.
Step 3: Track the Ad Funnel (CPA): How much money do you currently spend on TikTok or Meta (Facebook) ads just to acquire ONE sale? (Cost Per Acquisition).
Step 4: Assess Stripe/PayPal Taxes: Payment gateways legally extract roughly 2.9% + $0.30 off the total gross transaction before depositing the money into your bank.
Core Benefits
Prevents "Revenue Blindness": Over 50,000+ dropshippers leverage our e-com math to avoid "$10k Days" illusions on Shopify dashboards, correctly identifying when they are mathematically bleeding cash due to hidden Facebook ad costs.
Provides the "Break-Even CPA": This is the most critical metric in e-commerce. If your Break-Even CPA is $24, and Facebook is charging you $25 to acquire a customer, you must immediately shut down the ad campaign or your company will collapse.
Extracts Hidden Payment Gateway Bloodletting: Beginners calculate Selling Price - COGS. They forget that Shopify/Stripe take ~3% of the Gross revenue, which actually shaves off 10-15% of their total Net margin.
Frequently Asked Questions
Mathematically, "Free Shipping" does not exist. The courier always gets paid. You must simply inject the supplier's shipping cost directly into the retail Selling Price, creating an illusion of free shipping for conversion rate optimization (CRO) psychology.
Standard industry benchmarks dictate you should price the product at exactly 3x your COGS. 1/3 covers the product, 1/3 covers marketing/acquisition, and 1/3 is your Net Profit margin (roughly 33%). High-ticket dropshipping operates on lower percentages but drastically higher absolute dollar values.
No. This calculator is strictly a "Per-Unit Contribution Margin" engine. It models the profit of a single transaction. To find your monthly corporate profit, multiply the Net Profit by total volume, then subtract your fixed overhead ($39 Shopify plan, App subscriptions, LLC taxes).