1. What Is Length Plus Girth?

The length plus girth measurement is a standard way shipping companies determine package size limits. It's calculated by adding the longest side of the package (length) to the distance around its thickest part (girth).

2. How Shipping Companies Use This Measurement

Most major carriers (USPS, UPS, FedEx) use length plus girth to:

• Determine if a package qualifies as "oversized"
• Calculate additional shipping charges
• Enforce maximum size limits for certain services

3. How To Measure Your Package

Length: Measure the longest side of the package.
Girth: Measure around the thickest part perpendicular to the length.

For rectangular boxes: Add the shortest two dimensions, multiply by 2.

4. Using The Calculator

Tips: Enter length and girth in inches. Both values must be greater than zero. The calculator will sum them to give you the total measurement used by carriers.

5. Frequently Asked Questions (FAQ)

Q1: What's the maximum length plus girth for USPS Priority Mail?
A: 108 inches for most Priority Mail services.

Q2: How do I measure girth for irregularly shaped packages?
A: Use a flexible tape measure around the package's thickest part.

Q3: Do all carriers use the same size limits?
A: No, each carrier has different maximums for different services.

Q4: Why is length plus girth important?
A: Packages exceeding size limits may incur extra fees or be refused.

Q5: How accurate do my measurements need to be?
A: Round to the nearest inch - carriers typically don't measure more precisely than this.