Carriers often enforce strict weight limits for shipments. In some cases this may include the dimensional weight of the shipment. In order to prevent delays or inaccurate postage amounts, please ensure that your shipment falls within the allowable limits.

  • Domestic shipments must not exceed 70 lbs
  • Priority Mail International Shipments must not exceed 70 lbs
  • First Class International shipments limited to 4 lbs
  • Maximum dimensions vary by service

To calculate dimensional weight:

Dim wt (in lbs) = (L x W x H)/166      L, W, & H in inches

UPS Mail Innovations*

  • Shipments must not exceed 70 lbs.
  • Maximum dimensions: L + (2* W + 2* H) < 130 in
  • Dimensions must be provided in order to get a postage rate

To calculate dimensional weight:

Dim wt (in lbs) = (L x W x H)/166       L, W, & H in inches

Weight limits vary by destination and can change without notice. However, in most cases:

Please refer to the USPS International Mail Manual as a guideline for the requirements of each destination.

Rates may not be shown for shipments < 1 oz. In this case, please indicate 1 oz for the weight as 1 oz is the starting rate. In addition, rates will only be displayed for shipments with dimensions:

  • L <= 27, W <= 15, H <=15 in
  • L <= 42.5, W <= 4, H <=4 in

Chit Chats Canada Tracked

  • Shipments must not exceed 30 kg
  • Shipments below 100 g must be rounded up to 100 g
  • Maximum dimensions: Length < 2 m, Length + (2 x Height + 2 x Width) < 3 m
  • Shipments must not be longer than 78" (200 cm) or exceed 118" girth (300 cm)

To calculate dimensional weight:

Dim wt (in kg) = (L x W x H)/ 5000         L, W, & H in cm

Chit Chats International Standard*

  • Shipments must not exceed 2 kg
  • Dimension must produce a dimensional weight less than 2 kg

To calculate dimensional weight:

Dim wt (in kg) = ((L x W x H)/166)/2.24)       L, W, & H in inches

*Some services may only be available in select regions or for grandfathered accounts.