Sean Nalewanyj is a best-selling fitness author and fitness coach who has been publishing evidence-based, no B.S muscle building and fat loss information online since 2005.

Becoming a functioning member of society is realizing you don't need to lift directly in front of the dumbbell rack.

Feb 26, 2026 · Ideal arm size refers to bicep and forearm circumferences that are proportional to your skeletal frame. Bicep and forearm work together visually; the forearm-to-bicep ratio of approximately …

Jan 29, 2024 · However, the measurements are taken with the arm relaxed or unflexed. When you flex your bicep, your arm increases in size by approximately 5-10%. This means that if your arm …

This calculator estimates your relaxed arm girth using a 7.5% average conversion factor, useful for comparing against medical or clinical standards that use relaxed mid-arm circumference.

Boost fitness with the Nalewanyj, Sean - Upper /Lower Routine - 6days. This workout routine targets all major muscle groups for optimal strength and growth. Ideal for advanced levels to achieve general …

Feb 16, 2024 · Dive into Sean Nalewanyj’s workout program, a no BS, science-based approach that cuts through the fitness industry fluff to deliver straight-up results. This program embodies Sean’s …

Oct 23, 2025 · Using a tape measure, find the midpoint between your elbow and shoulder, where the arm is thickest. Take the measurement while your arm is relaxed—this is the standard for comparing …

Mar 21, 2026 · To measure your arms for bodybuilding, wrap a flexible cloth tape around the thickest part of your upper arm, at the midpoint between your shoulder tip and elbow. You’ll want both a …

Feb 8, 2026 · Real data on average arm measurements from the CDC and NHANES, what those numbers actually mean for lifters, and when to stop comparing yourself to charts. The CDC data …