Free Profit & Fee Calculators for
Mercari, Yahoo Auctions & Rakuma
Calculate profits, compare fees, and optimize your listings on Japanese flea market apps. All tools are free and work instantly in your browser.
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Everything you need for selling on Japanese apps
One-Click Japanese Greetings
Copy and paste these common phrases for Mercari and Yahoo Auctions transactions
はじめまして。こちらの商品を購入させていただきました。よろしくお願いいたします。
Nice to meet you. I have purchased this item. Thank you in advance.
本日発送いたしました。到着までもうしばらくお待ちください。
I shipped it today. Please wait a little longer for arrival.
商品が届きました。迅速な対応ありがとうございました。またよろしくお願いします。
The item arrived. Thank you for your quick response. Hope to deal with you again.
発送が遅れており申し訳ございません。〇〇日までには発送いたします。
Sorry for the delay in shipping. I will ship by [date].
申し訳ございませんが、お値下げは難しい状況です。ご理解いただけますと幸いです。
I'm sorry, but it's difficult to lower the price. I hope you understand.
Most Popular Tools
Essential calculators for Mercari, Yahoo Auctions, and Rakuma sellers
Profit Calculator
Calculate net profit after fees and shipping costs
Fee Comparison
Compare fees across Mercari, Yahoo Auctions, Rakuma
Shipping Calculator
Find the cheapest shipping method by size and weight
Flea Market Survival Guide
Unwritten rules, phrases and tips for foreign sellers
Monthly Report Card
Track sales and get your monthly grade
Seller Type Quiz
Find out what kind of seller you are in 10 questions
Fee Comparison Table
Compare fees across 13 platforms at a glance
Supported Platforms
Our tools work with all major Japanese flea market apps
Mercari
Fee: 10%
22M+ users
Yahoo Auctions
Fee: 10%
18M+ users
Rakuma
Fee: 6%
5M+ users
PayPay Flea Market
Fee: 5%
3M+ users
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