Articles on girth, shipping, and the body.
Practical, evidence-led writing for shippers managing carrier size limits and athletes tracking body measurement. New articles weekly.
Combat Sports & Neck Circumference Limits
Combat sports use neck circumference for sleep apnea screening, weight-cut monitoring, and grappling assessments. Here's what neck girth signals.
Pregnancy Body Measurements by Trimester
Pregnancy reshapes the body on a predictable timeline. Here's what each measurement does and when, with normal ranges by trimester.
How Body Girth Changes During a Cut vs a Bulk
What measurements move when you're losing fat versus gaining muscle, week by week, with realistic expectations for each phase.
Why Your Tape Measure Lies (And the Fix)
Measurement noise of 0.5–1 cm is invisible in casual use but ruins serious progress tracking. Here's how to get consistent numbers, week after week.
Hypertrophy Tracking: 4 Measurements You Need
Twelve girth measurements is overkill for tracking muscle growth. Four — done consistently — tell you almost everything.
Bicep Girth Standards: Average, Trained, Elite
The relaxed bicep girth of an average adult man is 13.5 inches. A trained natural can reach 17. Anything past that, the story gets more complicated.
Waist-Hip Ratio vs BMI: Which Predicts Health?
BMI dominates clinical practice but waist-to-hip ratio is a stronger predictor of cardiovascular disease in nearly every population studied.
McCallum Ideal Body Proportions, 50 Years On
John McCallum's formula links wrist size to ideal chest, waist, and arm girth. The math is dated but the bone-structure framing holds up.
Navy Body Fat Calculator: How Accurate Is It Really?
The US Navy formula estimates body fat from tape measurements in seconds. Accuracy is decent but inconsistent — here's when to trust it and when not.
Body Measurements vs the Scale: Real Progress
The scale tells you total mass. Girth measurements tell you where that mass is, whether it's changing, and whether your training is actually working.
Measure a Package Like a Carrier Auditor
Carriers don't trust your numbers — they remeasure. Here's how to measure packages the same way the carrier will, so your dimensions hold up.
International Shipping Size Limits by Country
Every postal service and international carrier has its own size limits. Here's a practical reference for shipping into and out of major markets.
Tube vs Box: Girth on Cylindrical Packages
Mailing tubes, poster tubes, and shipping cylinders use a different girth formula than boxes. Sometimes this works in your favor; sometimes it doesn't.
Why Your eBay Package Got Surcharged After Delivery
Adjustment fees show up days or weeks after the package arrives. Here's why carriers do it, when they have the right to, and what you can dispute.
Volumetric vs Actual Weight: When DIM Hurts
Dimensional weight pricing means light, bulky packages cost as much as heavy ones. Here's how to figure out which one your package is and what to do about it.
USPS 108-Inch Rule: What Counts, What Doesn't
USPS caps length plus girth at 108 inches on most services — but the rule has exceptions, and the way USPS measures isn't always what you'd guess.
Shipping a Surfboard: Size Limits & Carriers
Surfboards are 6–10 feet long, well over most carriers' length limits. Here's how surfers actually ship boards without paying a second mortgage.
How to Ship a Bike: Box Sizing & Carrier Costs
Shipping a bicycle isn't impossible — but the standard bike box puts you right at the edge of carrier size limits. Here's how to do it without paying double.
UPS vs FedEx Oversize Packages: 2026 Cost Guide
When your package crosses 96 inches, the choice between UPS and FedEx isn't price per pound — it's how each handles oversize surcharges and DIM weight.
Length + Girth: Complete Guide by Carrier (2026)
What length plus girth actually means, why every major carrier uses it, and how the seven biggest carriers compare in 2026.