Ecommerce seller calculators
Know your real profit per order after platform fees, fulfillment, and ad spend — and the most you can pay to acquire a customer. Built for Amazon, Etsy, Shopify, and marketplace sellers.
Marketplace fees and ad spend decide whether a "profitable" product actually is. Start with the Ecommerce Profit & Fee Calculator for net profit and break-even price per order, check FBA-specific costs in the Amazon FBA Calculator, then set your advertising ceiling with ROAS & Ad Break-Even. Confirm the underlying unit economics with Margin and Break-Even.
Common decisions
- What is my net profit per order? → Ecommerce Profit & Fee
- Is this FBA product worth it? → Amazon FBA Profit
- What is my max ad spend? → ROAS & Ad Break-Even
- Am I pricing for margin? → Profit Margin & Markup
Calculators in this guide
Ecommerce Profit & Fee Calculator
ecommerce profit calculator for Etsy, eBay, Amazon, and Shopify sellers.
Amazon FBA Profit Calculator
Amazon FBA profit calculator.
ROAS & Ad Break-Even Calculator
ROAS calculator.
Profit Margin & Markup Calculator
profit margin and markup calculator.
Break-Even Point Calculator
break-even calculator.
Sales Tax Calculator
sales tax calculator.
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Estimates for general guidance, not professional advice. See how we calculate & review.