E-commerce Calculators
Free calculators designed for US e-commerce sellers. Use these tools to price products, estimate fees, and plan ad spend with clear formulas and instant results.
-
Profit Margin Calculator
Calculate your real net profit and net margin after product costs, platform fees, payment fees, shipping, and advertising.
-
Break-even Price Calculator
Find the minimum selling price required to avoid losses before launching a product or running ads.
-
Product Pricing Calculator
Set a recommended selling price based on your target profit margin and all associated costs.
-
Ad Cost per Order Calculator
Determine the maximum advertising cost per order you can afford while still hitting your target margin.
-
Amazon FBA Fee Calculator (Simple)
Estimate Amazon referral and fulfillment fees and see how much profit you keep after using FBA.
Why these calculators matter
Pricing mistakes are one of the most common reasons e-commerce sellers lose money. Platform fees, payment processing, fulfillment, and advertising costs can quickly reduce margins if they are not calculated correctly.
SimpleTools provides clear, transparent calculators that help you make informed pricing and advertising decisions without spreadsheets or logins. All calculations are shown openly so you can trust and verify the results.