Cross-border ecommerce calculators

Global Profit Kit

Cross-border ecommerce fee and profit calculators for sellers. Current tools cover TikTok Shop US, Amazon FBA, Etsy, Shopify, PayPal, and Stripe planning scenarios.

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Sample unit economics

$16.08 net profit

Revenue$39.99 · 100%

Platform + creator$7.20 · 18%

Logistics + packaging$6.20 · 15.5%

Ads + samples$6.20 · 15.5%

Returns$3.20 · 8%

Multi-platform model

Rules live in config files so new marketplaces can reuse the same calculation surface.

Source-aware assumptions

Official fee sources, update dates, uncertainty notes, and seller-editable rates are separated.

Decision-ready outputs

Net profit, margin, ROI, break-even price, target price, and risk warnings stay visible together.

Tool list

TikTok Shop US Profit Calculator

Live

Estimate unit profit, margin, ROI, break-even price, and creator-driven risk.

Amazon FBA Calculator

Live

Referral, fulfillment, storage, returns, and ads model.

Etsy Fee Calculator

Live

Listing fees, transaction fees, payment processing, shipping, and offsite ads.

Shopify Margin Calculator

Live

Store margin with payments, shipping, CAC, apps, and returns.

PayPal / Stripe Fee Calculator

Live

Compare processor fees by order value and monthly transaction volume.