Health & Fitness

Health and fitness calculations sit at the intersection of personal data and quantified self-improvement. NoxaKit's Health & Fitness collection covers every metric from body composition and nutrition to strength training, cardio performance, and military fitness testing — all running locally in your browser with no data stored or shared.

**Who uses these tools?** Gym-goers and powerlifters use the 1RM estimator, plate loading calculator, strength standards checker, and DOTS calculator. Endurance athletes use the VO2 max estimator, race time predictor, cycling FTP and power zones calculators, and swim/row pace tools. Nutrition-focused users use the BMR/TDEE, macro splitter, keto calculator, and glycemic load tool. People tracking health metrics use the BMI, body fat (Navy method), waist-to-hip, and BSA calculators. Military and law enforcement personnel use the Army APFT/ACFT, Navy PRT, Air Force PT, and Police fitness test calculators.

**Common workflows** Cutting weight: open the calorie deficit calculator → set macro targets with the macro splitter → check body fat with Navy method → plan timeline with the weight cut calculator. Building strength: calculate current 1RM → find training percentages → generate progressive overload increments → check strength standards. Marathon prep: estimate VO2 max from Cooper test → predict race time at target distance → calculate target pace → set heart rate zones.

**Privacy note** Height, weight, body measurements, and health metrics are protected health-adjacent data. All calculations happen in your browser — nothing is stored or transmitted.

**Subcategories** Body Composition covers BMI, BMR, FFMI, body fat %, BSA, and lean mass. Nutrition & Diet includes macro calculator, keto, carb cycling, glycemic load, and meal prep. Strength & Lifting covers 1RM, plate loading, warm-up sets, RPE, and powerlifting totals. Cardio & Endurance includes VO2 max, race predictor, cycling FTP, swim/row pace, and Cooper/beep tests. Military & Police Testing covers APFT, ACFT, Navy PRT, Air Force PT, and CPAT. Athletic Performance includes vertical jump, sprint speed, boxing weight class, and sport-specific calculators.