US seller fee & shipping calculators
Start with US USPS postage, eBay fees and marketplace costs. Switch markets inside supported tools, or use Royal Mail, Canada Post and Australia Post tools for those regions. Rates are sourced and dated.
Marketplace fees
Etsy fee calculator
Transaction, processing, listing and offsite ads, by country.
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Etsy profit margin calculator
Fees, materials, labor and packaging: what a listing keeps.
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Amazon FBA fee calculator
Referral, fulfillment tiers and fuel surcharges: US, UK, CA, AU.
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FBA vs FBM calculator
Fulfill by Amazon or ship it yourself, side by side.
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eBay fee calculator
Final value fees by category, with per-order fees.
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ROAS / ACoS calculator
Turn ad spend into a number you can act on.
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Shipping & tax
US shipping cost calculator
USPS and FedEx estimates, plus UK, Canada and Australia rate references.
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USPS shipping cost calculator
Ground Advantage and Priority Mail rates by weight and zone.
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Royal Mail postage calculator
1st, 2nd, Tracked 24 and Tracked 48 by weight.
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International shipping cost calculator
Compare postage tables for cross-border letters and parcels.
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Sales tax calculator
US states, UK VAT, Canada GST/HST and AU GST for direct sellers.
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