郵局國際包裹/快捷資費查詢
http://www.post.gov.tw/post/internet/Postal/index.jsp?ID=2030206
English translation(Use google translation)
Taiwan Post of the US land and air package shipping instructions
Post office shipments to the United States land and air package shipping costs, can not apply to Taiwan Island shipping rules, to another shipping charges, please purchase the freight goods plus freight to facilitate the shipment operations.
Post office land and air parcels shipped to the United States about 21-22 days, can not be compared with the next day with the delivery speed, please understand. described as follows
Mail sent to the country: the United States
Billing weight: less than 6 kg
Mail volume: length: 32 cm × width: 24 cm × height: 25 cm or less
Post office international parcel / quick tariff inquiries
http://www.post.gov.tw/post/internet/Postal/index.jsp?ID=2030206