by Jimmy L WuUpdated May 2026

StrengthMath

Strength calculators that explain the number.

Calculators

Sourced math for the decisions that matter on this site.

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Guides

Beginner-safe research and how-tos, written from sources, not opinion.

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Ask a StrengthMath question

Quick answers about StrengthMath's calculators and how the numbers work. Free, no signup. Not professional advice — for regulated decisions, talk to a licensed professional.

Hi, I'm the StrengthMath assistant. I answer questions about strength-training math — 1RM estimation, percentage-of-1RM programming, plate loading, dumbbell-vs-barbell comparison, strength-standards reading — and how the calculators on this site work. I'm not a strength coach or sports-medicine professional and can't program for your specific physiology, training history, or competition goals. For programming or pain/injury, work with a qualified strength coach (NSCA CSCS, USAW, equivalent) or a sports-medicine physician.

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