What are the weight and size restrictions for sending mail?
Australia Post has specific weight and size restrictions for sending mail, which can vary depending on the mail service selected. For standard letters sent within Australia, the maximum weight is typically 250 grams, and they must fit within certain size dimensions. The dimensions usually allow for letters that are no larger than 260 millimetres in length and 360 millimetres in width. The thickness should not exceed 20 millimetres.
For packages, the size and weight limits can differ based on the type of service. For example, a standard parcel can weigh up to 22 kilograms and must not exceed certain size parameters, which can include maximum length, girth, and width measurements. If you are sending items internationally, the weight limits can also differ depending on the destination and service selected.
Australia Post also emphasizes that items must be securely packaged and appropriately labelled to ensure safe delivery. For more specific details on weight and size limits for various services, it is advisable to check the current Australia Post website, where updated information is available.

Answered Jul 10, 2025
Need further help?
Type out your followup or related question and we will get you an answer right away.
Need to contact Australia Post?
If you need to talk to Australia Post customer service, now that you have the answers
that you needed, click the button below.
Contact Australia Post