Selling Tools

Calculate Amazon US FBA profit, margin, ROI, and seller fees before you source or reprice inventory.

Enter your product dimensions and weight — estimate your FBA fulfillment fee and size tier

Estimate monthly FBA storage cost from inventory volume and storage rate

Compare FBA and FBM profit per order before choosing a fulfillment method

Estimate Amazon referral fees by sale price and category before pricing a product

Calculate gross profit margin, net margin, and markup — and understand the difference between them

Estimate the units and revenue needed to break even — before you source or launch

Find the ROAS you need before ads turn a product unprofitable

Calculate the selling price you need from cost, target margin, or markup

Calculate volume discount prices, order totals, customer savings, and profit before you send a bulk quote

Create a professional preliminary invoice for a buyer, calculate the total, and download it as a PDF

Prepare a customs-ready international shipment invoice and download a professional PDF

Enter your costs and target profit margin — estimate the price you should charge

Calculate markup percentage, convert markup to margin, and find the right selling price from cost

Convert markup percentage into profit margin before you set a selling price

Add every cost from factory to your warehouse door — know your true cost per unit before you place the order

Estimate domestic package shipping costs by weight, dimensions, and zone. Compare planning estimates for USPS, UPS, and FedEx before pricing an online order.

Estimate international parcel shipping cost before pricing cross-border orders

Calculate DIM weight and billable weight from package dimensions before pricing shipping, FBA fees, or oversized parcels.

Estimate Shopify order profit after product cost, shipping, fees, and ads

Estimate Poshmark seller fees, net profit, and take-home payout before listing

Enter your eBay sale price and costs — estimate fees and real take-home profit

Enter your Etsy sale price and costs — see every Etsy fee and your real take-home profit

Estimate Etsy digital download profit after listing fees, transaction fees, payment fees, and ads