Free tools for online sellers

Check the numbers before you list, ship or send inventory in. Every calculator is free and needs no sign-up.

Seller checking an order on her phone next to packed boxes

Free calculator

Walmart profit calculator

See what you keep from each Walmart sale after the referral fee, fulfillment, ads and returns, plus your break-even price.

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Seller packing an order at a desk with a laptop

Free calculator

Amazon FBA fees and profit calculator

Add up the referral fee, your FBA fee, storage, ads and returns to see your real profit and break-even price.

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Inventory boxes stacked in a stockroom

Free calculator

FBA and WFS reimbursement estimator

Estimate what Amazon or Walmart may owe you for lost, damaged or never-returned inventory, and how much you are not claiming.

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Seller checking an order on her phone next to packed boxes

Free calculator

eBay fee calculator

See eBay’s final value fee, per-order fee and Promoted Listings costs on any sale, plus your payout, profit and break-even price.

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