Free Margin Calculator for Ecommerce Profit Margin Calculation
A margin calculator shows how much of every sale you keep after costs. ProfitCalc.me is a free profit margin calculator suite for Shopify, dropshipping, and online stores. Run a full profit margin calculation with product cost, shipping, ads, and platform fees — no sign-up.
Sellers in the USA, UK, Canada, and New Zealand can calculate profit margin with local tax rules (sales tax, VAT, GST/HST) instead of guessing from revenue alone.
How to Calculate Profit Margin (Formula)
The core profit margin equation is:
Profit margin % = (Net Profit ÷ Selling Price) × 100
For ecommerce, net profit is not price minus product cost only. Subtract shipping, ad spend per unit, and Shopify/payment fees. That is how you calculate profit margin percentage the way operators actually use it. Learn the full walkthrough in our guide: how to calculate profit margin.
Shopify Profit Calculator USA & Dropshipping Margins
US sellers should use a dedicated Shopify profit calculator USA that factors Shopify Payments (~2.9% + $0.30) and sales tax as a pass-through. Looking for a good profit margin for dropshipping? Aim for about 15–25% net after ads; under 10% is fragile when CPMs rise. Read: what is a good profit margin for dropshipping (2026).
UK dropshippers need VAT in the math. Use the dropshipping profit calculator UK for GBP + 20% VAT, or see our UK margin calculation & Shopify fees guide.
Ecommerce Margin Calculator for Canada & New Zealand
Canada sellers can toggle GST/HST in our ecommerce margin calculator Canada. NZ stores include GST 15% in the profit calculator New Zealand. Same margin calculator logic — local tax defaults.
ROAS Calculator & Break-Even Calculator
A healthy margin without a clear ROAS target still burns cash. Use the free ROAS calculator for break-even and target ROAS, and the break-even calculator to see units needed before a launch. Pair them with your profit margin calculator so ads and pricing stay aligned.
Margin vs Markup — Why Sellers Mix Them Up
Margin is profit ÷ selling price. Markup is profit ÷ product cost. A $20 cost sold at $40 is 50% margin and 100% markup. Price from margin after fees and ads, or a “2× markup” can still lose money.
Margin Calculator FAQ
What is a free margin calculator?+
A free margin calculator shows profit margin % = (net profit ÷ selling price) × 100 after product cost, shipping, ads, and platform fees. ProfitCalc.me tools are free with no sign-up.
How do I calculate profit margin for Shopify?+
Subtract product cost, shipping, Shopify Payments fees, and ad spend per order from the selling price, then divide by price. Use our Shopify profit calculator USA for a full profit margin calculation.
What is a good profit margin for dropshipping?+
A good profit margin for dropshipping in 2026 is usually 15–25% net after ads and fees. Under 10% net is risky when CPMs rise. See our dropshipping margin guide for USA and UK benchmarks.
What is the difference between margin and markup?+
Margin is profit ÷ selling price. Markup is profit ÷ product cost. A $20 cost sold at $40 is 50% margin and 100% markup. Always price from margin, not markup alone.
More guides on the ProfitCalc blog: Shopify fees USA, dropshipping profit USA, ROAS targets, and regional margin calculation for UK, AU, and NZ.