Sendle parcel sizes and weights

Choosing the right size option for your parcel will ensure there are no hiccups along the way. 

This article has all the information you need to master the Sendle booking process, how to choose the right size for your parcel, and how the shipping cost is calculated.

If you want to know what sort of things fit into each parcel size and the most common box sizes for each, check out our Package Size Guide!

On this page

Size calculation  /  Maximum sizes  /  How to manually calculate cubic volume  / 
How to simply calculate your parcel volume  /  Mailing tubes/cylinder-shaped parcels  /  Parcel restrictions 

Size calculation

When booking a shipment with Sendle, we recommend you measure and weigh your parcels to create a 'custom size', then save them to our 'saved sizes' – this will give you the best price.

Another convenient way to book a delivery is to use Sendle's common sizes to slot your shipment into. Think of each as a size ceiling that your parcel must fit under to qualify. 

You need to choose a size that is under both the weight and volume limit. Make sure you include your outer packaging when calculating the size!

Here are the current Sendle 'common' size options:

  • Keychain (4oz)
  • T-shirt (8oz)
  • Magazine (12oz)
  • Coffee Mug (1 lb)
  • Belt Bag (5 lb and 172 in³)
  • Handbag (8 lb and 354 in³)
  • Shoebox (10 lb and 518 in³)
  • Briefcase (15 lb and 691 in³)
  • Backpack (20 lb and 864 in³)
  • Check-in (50 lb and 3456 in³)

Screen Shot 2023-08-07 at 10.24.53 am.png

If you are more the table type, here is a simple breakdown of our common sizes:

  Weight Volume


4oz Dimension limits apply*


8oz Dimension limits apply*


12oz Dimension limits apply*
Coffee Mug 1 lb Dimension limits apply*
Belt Bag 5 lb 172 in³
Handbag 8 lb 354 in³
Shoebox 10 lb 518 in³
Briefcase 15 lb 636 in³
Backpack 20 lb

864 in³

Check-in 50 lb

3456 in³

*not to exceed a combined length and circumference of 108" and sides cannot exceed 22"

Maximum sizes

  • The maximum combined length and circumference of any parcel is 108” (this includes outer packaging). Circumference is width plus height multiplied by two, so combined length and circumference = L + 2x(W+H).
  • Longest side for parcels up to 8lbs: maximum 22 inches
  • Longest side for parcels over 8lbs: maximum 18 inches
  • The largest weight bracket for domestic orders is 70 lb (and up to 5,184 in³)
  • The largest weight bracket for international orders is 20 lb
  • The total dimensions of any one parcel cannot be greater than 95"

A note for Pro customers: Depending on your location, you could have access to a higher maximum custom parcel size with our 'Preferred' service. This will show up in your dashboard if it's available to you.

If you're sending a parcel internationally, go to international sizes and weights.

Keep in mind: If the item you’re sending is oversized, the parcel will get returned to the sender and Sendle will not be able to refund the original shipping cost.

For example (and from our experience), while prams and bikes aren’t prohibited, they are simply just too big to send with Sendle. This is also why it's probably not best to use Sendle if you're moving house!

How to manually calculate cubic volume: 

Volume is calculated as a cube (like a box). We represent this volume in cubic inches, so it's super easy to figure out. Find your volume in cubic inches by just multiplying your box length by width by height in inches. Voila! Volume!

How to simply calculate your parcel volume:

Right in your 'Sending' dashboard, you'll see our sizing tool. Simply enter your box dimensions and weight to automatically get your correct parcel size. It'll even select it for you.

Mailing tubes/cylinder-shaped parcels

Mailing tubes, or any parcel that is cylinder-shaped, are charged on the same basis as all Sendle parcels—that is, we need to consider both the weight (in pounds) and the volume (in cubic inches). 

  • To find the volume of a cylinder is a bit more complicated than your standard box. In equation form that looks like V=𝝅r2h. If that’s your thing, have at it.
  • To make your life easier, use this handy calculator to find your cubic volume. In the calculator, you can simply enter your radius (half your diameter) and the cylinder height to get your cubic inch volume. Much nicer than whatever math lecture we would have put you through.
  • Now, you've got your cylindrical volume in cubic inches. Great job!

Here’s an example: A tube that is 40 inches long and a radius of 5 inches would come to approximately 3,142 cubic inches. 

Parcel restrictions

  • In addition to the cubic volume, weight must also be considered when selecting the right parcel size. For example, if the tube has a volume of under 500 cubic inches and weighs under 10 lb, it must be booked as a Shoebox size (<10 lb and <518 in³). 
  • All standard-sized parcels sent with Sendle need to be under 3456 cubic inches, under 50 lb, with a combined length and circumference of 108” or less, and sides cannot exceed 22" in order to be fit for Sendle.
  • Also, take note of how your label fits on the tube. It’s very important that the parcel can scan correctly. Otherwise, the carrier may reject it at pickup.
  • If your parcel is weighed and measured at the depot and found to be larger than the size it was booked (including the outer packaging), you may receive adjustment charges to your order

Related articles:

Was this article helpful?
21 out of 63 found this helpful

Get instant support with the Sendle Toolbox

If something goes wrong with your delivery or you need to make a change to your order, use the tools in the Manage Parcel section on the parcel tracking page.

Access Support Tools
You will need your Sendle reference number
to acess your parcel's tracking page.

Can't find what you're looking for?

Contact us