E-Commerce & Digital Seller Calculators
Maximize net take-home margins across Etsy, Amazon FBA, TikTok Shop, Shopify, and Print-on-Demand channels.
Free Invoice Generator
NEWCreate, customize, and export printable A4 PDF invoices with logo upload, multi-currency support, and tax calculations.
Etsy Fee & Profit Calculator
Calculate total listing renewal, 6.5% transaction cut, country payment processing, offsite ads, and net profit.
Amazon FBA Dim Weight Checker
Identify Amazon size tiers, billable dimensional weights ($L \times W \times H / 139$), and packaging downsizing alerts.
TikTok Shop Payout Estimator
Calculate actual bank payouts after TikTok referral cuts, creator affiliate commissions, and shipping subsidies.
Print-on-Demand Profit Grid
Side-by-side comparative matrix comparing Printify vs Printful vs Gelato net profit margins on apparel and mugs.
Shopify CSV Pre-Validator
Pre-flight check Shopify product CSVs client-side for duplicate variant handles and broken image URLs.
E-Commerce Profitability Calculators & Seller Financial Engines
Selling across Amazon FBA, Etsy, TikTok Shop, and Print-on-Demand (POD) platforms requires precise financial forecasting. Hidden payment processing fees, referral cuts, fulfillment surcharges, and tiered commission slabs can rapidly erode margins. The 360Tools E-Commerce Suite delivers real-time marketplace calculators, professional invoice generators, and Shopify CSV validators to protect your net profit margins with zero subscription fees.
Amazon FBA Tier Modeling
Calculate exact dimensional weight tiers, peak storage surcharges, and net payout margins before shipping inventory to fulfillment centers.
Etsy Fee Optimization
Factor in 6.5% transaction cuts, listing renewal expenses, regulatory operating charges, and Offsite Ads margins seamlessly.
Client-Side Invoice Studio
Generate PDF client invoices with custom tax rates, line items, and company branding with zero account registration.
Frequently Asked Questions
Are marketplace calculator formulas updated for current fee schedules?
Yes. Our calculators incorporate the latest fee policies, transaction rate updates, and shipping tier dimensions across Amazon, Etsy, TikTok Shop, and Print-on-Demand providers.