Useful ecommerce calculations, without the spreadsheet.
Simple, practical tools for estimating costs and making clearer operational decisions as your store grows.
Available now
Free ecommerce tools
Operations & fulfillment
Fulfillment Cost Calculator
Estimate weekly pick and pack, storage, and shipping costs using your order volume, package weight, and U.S. delivery zone.
Open toolAmazon selling
Amazon Fee Calculator
Estimate referral fees, fulfillment costs, and per-unit profit for a U.S. Amazon product.
Open toolAdvertising
PPC Break-Even Calculator
Find the ad cost of sales and cost per order your margin can support before ads stop paying back.
Open toolListing optimization
Keyword Density Checker
Analyze listing copy for repeated terms, target-keyword coverage, and readability risks.
Open toolListing optimization
Listing Score Grader
Check a marketplace listing's title, bullets, and description against practical content benchmarks.
Open toolCustomer insights
Review Sentiment Analyzer
Sort pasted customer reviews into positive, neutral, and negative feedback to surface themes quickly.
Open toolProduct validation
TikTok Shop Product Validator
Score a product idea against the practical signals that make short-form social commerce work.
Open tool