Shipping Reference Charts

Pack and ship efficiently. Weight and size limits for common carriers and services.

Logistics & Shipping Data

Shipping costs can eat into profits. Understanding weight breaks, dimensional weight, and carrier limits helps you optimize packaging and save money. These charts are essential for e-commerce sellers and logistics managers.

Frequently Asked Questions

What is dimensional weight?
Carriers charge based on volume if a package is light but large. Dim Weight = (Length x Width x Height) / Divisor (usually 139).
How many grams in a pound?
There are approximately 453.6 grams in 1 pound.
What is the limit for First Class Mail?
USPS First Class Package Service is generally limited to 15.99 oz (just under 1 lb). Heavier items must go Priority Mail.

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