It depends on weight, size, service and destination. This tool estimates the cost across the main carriers so you can pick the cheapest and price your listing (charge the buyer the right postage, or offer free postage and build it into the price).
UK: Royal Mail, Evri and DPD · US: USPS and UPS · plus international. Figures are representative estimates — carriers change prices and add size/zone surcharges, so always confirm the live rate for anything valuable.
Work out your profit after fees →
🧰 Free tools: Fee & profit · Shipping · Import