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Health & Fitness Tools

900+ free calculators, planners, and assessment tools.

All (900) Biomarkers (63) Body (39) Cardio (94) Nutrition (138) Psychology (51) Recovery (175) Strength (60) Supplements (52) Training (228)
900 tools
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Strength
Bench Press Arch Guide
Assess bench press technique and find your optimal setup.
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Strength
Squat Depth Checker
Assess what limits your squat depth and get corrective exercises.
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Strength
Accessory Exercise Selector
Pick the right accessories to fix weak points in your main lifts.
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Cardio
HR Recovery Test
Assess cardiovascular fitness from your 1-minute heart rate recovery.
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Cardio
Running Economy
Calculate your running economy and compare to population norms.
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Cardio
HIIT Workout Builder
Design interval workouts with customizable work-rest ratios.
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Cardio
Walking Fitness Test
Estimate fitness from the Rockport 1-mile walk test.
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Cardio
Race Taper Planner
Plan your pre-race taper with optimal volume reduction by week.
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Recovery
Self-Massage Guide
Targeted foam rolling and lacrosse ball routines by body area.
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Recovery
Sleep Debt Calculator
Calculate your accumulated sleep debt and recovery timeline.
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Recovery
Dehydration Risk Score
Assess your dehydration risk based on multiple lifestyle factors.
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Recovery
Training Readiness Score
Combined HRV, sleep, soreness, and mood score to guide today's training.
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Recovery
Box Breathing Timer
Guided box breathing protocol with customizable intervals.
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Psychology
Motivation Type Finder
Discover your training motivation profile and strategies that work for you.
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Psychology
Habit Tracker Setup
Design a minimum viable fitness habit stack you can actually maintain.
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Psychology
SMART Goal Builder
Build specific, measurable, achievable, relevant, time-bound fitness goals.
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Psychology
Burnout Risk Assessment
Assess your risk of training burnout from physical and psychological factors.
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Nutrition
Mini-Cut Calculator
Plan a short aggressive 4-6 week fat loss phase with muscle preservation.
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Nutrition
Reverse Diet Planner
Plan calorie increases after a diet to minimize fat regain.
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Biomarkers
Blood Panel Checklist
Know which blood markers to request for optimal health monitoring.
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Biomarkers
Inflammation Score
Rate your chronic inflammation risk from lifestyle and dietary factors.
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Biomarkers
Hormone Health Checklist
Self-assess common signs of hormonal imbalance and which tests to request.
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Biomarkers
Longevity Score
Estimate your longevity score based on key modifiable health factors.
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Recovery
Circadian Rhythm Optimizer
Optimize your daily schedule for sleep, meals, exercise, and light exposure.
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Guides & Challenges

20 evidence-based guides, 5 challenges, and 5 value bundles โ€” complete with PDFs, Excel trackers, and protocols.

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