The free Shopify profit margin calculator that factors in COGS, shipping, and ad spend — then generates Charm, Premium, and Bundle pricing tiers using proven psychological pricing principles. No spreadsheets. No sign-ups.
Trusted by scaling Shopify & e-commerce brands
Most e-commerce founders only subtract their product cost from the selling price. But your true margin is gutted by three hidden costs most spreadsheets miss:
Manufacturers change MOQ pricing, tariffs spike, and quality-control costs add up — your unit cost is almost always higher than you think.
Your Cost-Per-Acquisition (CPA) directly erodes margin. A $25 CPA on a $40 product with $15 COGS means you're operating at a loss before shipping.
Pricing at $50.00 instead of $49.99, or missing bundle incentives — these micro-decisions compound into thousands in lost revenue per month.
Input your Cost of Goods, shipping/fulfilment, and paid ad spend (CPA). The engine instantly computes your Total Landed Cost and Break-Even Price — the floor below which every sale is a loss.
Break-Even = COGS + Shipping + Ad Spend
COGS
$15.00
Shipping
$5.00
Ad Spend (CPA)
$10.00
Break-Even Price
$30.00
The Charm Price
Drives conversions via anchoring
The Premium Price
Signals quality · Recommended
Bundle (Buy 2)
Boosts AOV by 10%
Once your costs are entered, the engine auto-generates three scientifically-backed pricing tiers from your target margin — so you can test Charm, Premium, and Bundle strategies without a single manual calculation.
E-commerce profit margin is calculated using the formula: Margin (%) = ((Selling Price − Total Cost) / Selling Price) × 100. Your Total Cost (also called "Total Landed Cost") must include Cost of Goods Sold (COGS), shipping/fulfilment fees, and your paid ad spend (CPA). For example: if your COGS is $15, shipping is $5, and ad spend is $10, your Total Landed Cost is $30. To achieve a 40% margin, your selling price must be $30 ÷ (1 − 0.40) = $50.
Psychological pricing uses price anchoring and cognitive biases to increase perceived value and conversion rates. The three key tiers are: (1) Charm Pricing — ending a price in .99 (e.g., $49.99) makes buyers perceive it as significantly cheaper than $50; (2) Premium Pricing — a clean, flat number (e.g., $50 or $55) signals quality and premium positioning; (3) Bundle Pricing — offering "Buy 2, get 10% off" increases average order value (AOV) while keeping per-unit margins healthy.
Yes — 100% free. There is no sign-up, no account, and no paywall. All calculations (break-even, target margin, and psychology tiers) execute instantly in your browser using JavaScript. No data is ever sent to a server or stored anywhere. You can use it as many times as you like, for as many products as you need.
The break-even price is the minimum selling price at which your profit is exactly $0 — meaning your revenue equals your total costs. It is calculated as: Break-Even Price = COGS + Shipping Cost + Ad Spend (CPA). Any price above the break-even point generates profit; any price below results in a loss. Knowing your break-even is the essential first step before applying any pricing strategy.
Getting your pricing right is step one. Codeblib specializes in high-performance headless e-commerce builds and conversion rate optimization for scaling DTC and Shopify brands.