USPS

The Volume of Priority Mail Flat Rate Boxes vs. The Cost of Shipping 
calculated using domestic rates; maximum weight for all types is 70 lbs.

Small Box
Dimensions: 8-5/8" x 5-3/8" x 1-5/8"
Volume: 75.33 sq. in.
Price: $4.95 USD
Price per square inch: $0.0657 USD

Medium Box ONE (code FRB1)
Dimensions: 11" x 8-1/2" x 5-1/2"
Volume: 514.25 sq. in.
Price: $10.70 USD
Price per square inch: $0.0208 USD

Medium Box TWO (code FRB2)
Dimensions: 13-5/8" x 11-7/8" x 3-3/8"
Volume: 546.06 sq. in.
Price: $10.70 USD
Price per square inch: $0.0196 USD

Large Box
Dimensions: 12" x 12" x 5-1/2"
Volume: 792 sq. in.
Price: $14.50 USD*
Price per square inch: $0.0183
*special price for APO/FPO destinations: $12.50 USD


International Rates and Restrictions

Small Box
$13.45
Max. weight: 4 lbs.
Max value of contents: $400.00 USD

Medium Boxes (both)

$43.45

Max. weight: 20 lbs.

Large Box

$55.95 

Max. weight: 20 lbs.