E-commerce Toolkit
Pricing, marketplace fees and launch tools for online sellers, curated in one toolkit.
Selling Price Calculator
Work backward from your desired profit margin to find the right selling price.
Product Profit Calculator
Calculate profit per unit from selling price, cost and fees.
Amazon FBA Fee Calculator
Estimate Amazon referral and FBA fees to see your net proceeds.
Etsy Fee Calculator
Estimate Etsy listing, transaction and payment processing fees.
Shopify Fee Calculator
Estimate Shopify payment processing fees to see your net proceeds.
Shipping Cost Calculator
Estimate shipping cost from package dimensions and weight.
Dropshipping Profit Calculator
Calculate profit per order after supplier cost, fees and ad spend.
Discount Calculator
Find the sale price and savings for any discount.
VAT Calculator
Add or remove VAT/sales tax from any price.
SKU Generator
Creates uppercase stock-keeping identifiers from a cleaned prefix and two cryptographically random three-character groups.
Coupon Code Generator
Creates readable promotional codes from your campaign prefix and two secure random four-character groups.
UTM Builder
Build UTM-tagged campaign URLs for free, without overwriting existing query strings.
Who this collection is for
Online sellers who need to price a product, check a marketplace's real fee structure and generate the SKUs, coupon codes and campaign links that go with a launch — without opening five different marketplace calculators.
What's in the toolkit
Pricing a product: Selling Price Calculator and Product Profit Calculator work backward from a target margin, and Discount Calculator and VAT Calculator adjust that price for sales and tax. Marketplace fees: Amazon FBA Fee Calculator, Etsy Fee Calculator and Shopify Fee Calculator model each platform's real fee schedule instead of a generic percentage — critical because take-home profit varies a lot between platforms. Fulfillment and stock: Shipping Cost Calculator, and Dropshipping Profit Calculator for sellers who never touch inventory. Launching a listing: SKU Generator and Coupon Code Generator create the identifiers a new product needs, and UTM Builder tags the campaign links that drive traffic to it.
A typical workflow
Start with Product Profit Calculator to see what margin a price actually leaves after estimated costs, then run the same numbers through the fee calculator for whichever marketplace you're selling on — Amazon FBA Fee Calculator and Etsy Fee Calculator rarely agree, so check both if you sell on more than one. Generate a SKU for the new listing and a coupon code for its launch discount. Before sharing the listing link on social media or in an email campaign, tag it with UTM Builder so its traffic shows up separately in analytics.