เครื่องมือผู้ขายอีคอมเมิร์ซ เครื่องคิดเลข

Calculate Etsy fees, transaction costs, and net profit per sale. Includes listing fee, transaction fee, payment processing, and shipping. Free.

Calculate total monthly Shopify store costs including plan fees, apps, transaction fees, and credit card processing. Free.

Calculate Amazon FBA fees including referral fee, fulfillment fee, storage fee, and net profit per unit. Free.

Calculate retail price from cost and target margin or markup. Cost-plus pricing with profit and breakeven analysis. Free.