"Shipping calculation" displays the top 5 services that can send packages cheaply by entering the weight and size of the package.

It has the following features.
-You can easily find out which services can be sent cheaply just by entering the size and weight.
-The history function allows you to use the weight and size of luggage searched in the past.
-A warning will be displayed when the weight or size is likely to exceed the upper limit of the service, so you can prevent the charge from being exceeded due to packaging.
・ You can narrow down your search to only nearby sending locations such as convenience stores and post offices.
・ Of course, no annoying advertisements will be displayed.

The following services are supported.
·Yu-Pack
・ Letter Pack Light / Plus
・ Click post
・ Mail (standard / non-standard)
・ Yu-mail
・ Smart letter
・ Yu packet
・ Takkyubin (Yamato Transport)
・ Takkyubin Compact (Yamato Transport)

In the paid version "Shipping calculation +",
We also support mailing services for Mercari, Rakuma, and Yahoo Auctions.