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Tools Category Directory100% Free • Evidence-Grounded Formulas

Strength Tools & Calculators

Explore our collection of interactive strength and training calculators. Each tool lives on its own dedicated page with transparent mathematical formulas, unit conversion (`LB` ↔ `KG`), and actionable training prescriptions.

Published Interactive Tools

Select a Calculator to Launch

3 Live Tools Available
Squat 1RM & Strength Standards Calculator
Lower Body • 1RM & Relative StrengthLaunch Calculator

Squat 1RM & Strength Standards Calculator

Calculation Model: Epley (1985) + Bodyweight & Age Multipliers

Calculate your estimated Barbell Back Squat One-Rep Max (1RM) from any submaximal set, compare your squat against male (0.65×–2.50× BW) and female (0.40×–2.00× BW) standards by bodyweight and age, view your personalized Rep-Max & Training Zone table, and generate a shareable Strength Scorecard.

Live LB ↔ KG Unit Conversion1RM Estimator (Epley Formula)Lower-Body Rank & PercentilePersonalized Rep-Max & Plate TableShareable Strength Card
Bench Press 1RM & Strength Standards Calculator
Upper Body • 1RM & Relative StrengthLaunch Calculator

Bench Press 1RM & Strength Standards Calculator

Calculation Model: Epley (1985) + Bodyweight & Age Multipliers

Calculate your estimated Bench Press One-Rep Max (1RM) from any 1–12 rep set, discover your exact strength tier (Beginner to Elite) and percentile, view your personalized Rep-Max & Training Zone table, and generate a shareable Strength Scorecard.

Live LB ↔ KG Unit Conversion1RM Estimator (Epley Formula)Strength Spectrum & PercentilePersonalized Rep-Max & Plate TableShareable Strength Card
Deadlift 1RM & Strength Standards Calculator
Full Body / Posterior Chain • 1RM & Relative StrengthLaunch Calculator

Deadlift 1RM & Strength Standards Calculator

Calculation Model: Epley (1985) + Bodyweight & Age Multipliers

Calculate your estimated Deadlift One-Rep Max (1RM) from any submaximal set, compare your pull against male (0.75×–3.00× BW) and female (0.50×–2.25× BW) standards by bodyweight and age, view exact barbell plate loading, and copy your verified Strength Scorecard.

Live LB ↔ KG Unit Conversion1RM Estimator (Epley Formula)Posterior-Chain Rank & PercentilePersonalized Rep-Max & Plate TableShareable Strength Card
Transparent Engineering

What Sets StrengthRegimen Calculators Apart

1. Peer-Reviewed Equations

Every tool documents the exact mathematical formula used—such as the Epley (1985) 1RM equation, NSCA training zone percentages, and allometric bodyweight scaling.

2. Instant Imperial & Metric Sync (LB ↔ KG)

Switch seamlessly between pounds (LB) and kilograms (KG) on any tool page with automatic bodyweight, barbell load, and plate-per-side conversion.

3. Dedicated Fast-Loading Tool Pages

Each calculator is hosted on its own dedicated URL for fast loading and easy bookmarking. New calculator blocks are added to this directory as soon as they go live.