How to use this calculator
Base cost is what your print-on-demand provider (Printify, Printful, Gelato) charges you to produce a single item. Shipping cost is what they charge to ship that item to your customer. Both come straight out of your revenue, so they're the foundation of every margin calculation.
Platform fees stack. Etsy is the worst offender: a 6.5% transaction fee, a $0.20 listing fee, ~3% payment processing fee, and an additional 12–15% Offsite Ads fee if Etsy drives the sale through Google or social. Shopify and your own site only charge payment processing (~2.9% + $0.30) — but you have to drive your own traffic.
A healthy POD margin is 30–50%. Anything under 15% is fragile — one refund or chargeback wipes out a month of profit. Aim higher than you think you need to.
Most POD sellers obsess over traffic but never reverse-calculate how many sales they actually need to hit their income goal. This tool does that math instantly so you know whether your store has a pricing problem, a traffic problem, or both.