How to say “Set your case on the luggage scale, and I'll check whether there's an extra charge.” in Japanese
In Japanese
スーツケースを荷物用はかりに載せてもらえますか。追加料金がかかるか確認します。
Sūtsukēsu o nimotsuyō hakari ni nosete moraemasu ka. Tsuika ryōkin ga kakaru ka kakunin shimasu.