Size and weight guidelines
Check the maximum size and weight limits for sending parcels and letters within Australia and overseas.
Guidelines and postage costs for parcels and letters
Check the size and weight requirements for sending a letter or parcel within Australia or overseas, and use our online calculator to estimate the postage price and delivery time to send your item.
Maximum size and weight1
| Destination | Maximum weight | Maximum length | Maximum dimensions |
|---|---|---|---|
| Send within Australia | Maximum weight 22kg |
Maximum length 105cm |
Maximum dimensions 0.25 cubic metres |
| Send overseas | Maximum weight 20kg |
Maximum length 105cm |
Maximum dimensions 140cm girth |
How we assess postage for parcels sent within Australia
Prepaid satchels 5kg and under
Postage for prepaid satchels and mailing boxes is based on size, not weight. Choose from 4 sizes.
Flat rate packaging 5kg and under
Flat rate postage is based on size, not weight. Choose from boxes, mailing tubes, tough bags and more.
Other packaging 5kg and under
Use other packaging (yours or ours) and postage is based on the weight or cubic weight (whichever is greater2), and the destination.
Sending 5kg - 22kg
The postage for parcels 5kg – 22kg is based on the weight or cubic weight (whichever is greater2), and the destination.
How we assess postage for parcels sent overseas3
International parcels are charged according to actual weight. The maximum weight you can ship is 20kg and the maximum girth is 140cm.
You don’t need to cube Australia Post International parcels, including prepaid satchels and flat rate satchels.
Calculate the cost and time to send your item
Use our online calculator to estimate the postage price and delivery time to send your letter or parcel within Australia or overseas. If you need more assistance, visit your local Post Office and talk to our friendly team.
1 Some domestic parcel services have specific size and weight restrictions. Check the parcel service or visit your local Post Office for more details before lodging your article.
2 For parcels where you use your own packaging or any other packaging, which is not eligible for the national flat rates for postage based on size, Australia Post will assess charges according to the actual weight or cubic weight equivalent of the parcel, whichever is greater. Learn more about cubing on page 5 of our Domestic parcels guide (PDF 443kB).
3 While Australia Post accepts articles of the specified size and weight for international posting, some countries may have their own restriction on parcel sizes. Please check with the foreign postal agency if concerned or view our International post guide.
4 Available in November and December only.
