Due to a partial revision from Japan Post, shipping charges for Airmail (small packages) are scheduled to change on September 27, 2023. You can check the shipping fee after the change with this shipping fee calculator tool.
Select the name of your Region to check prices for various shipments. The weight refers to the total weight of the order including the shipping box.
Please note DHL takes box size over the weight. If an item weighs less than the max weight the box can hold, DHL will take the price of the size of the box over the weight. You can read more about DHL pricing here.
Read more about Box size here