About Caltohub

Empowering fitness enthusiasts, athletes, and individuals with science-backed metabolic metrics and body composition tracking.

Our Mission

Caltohub was established to provide clean, fast, privacy-focused online tools that eliminate guesswork from nutrition and body re-composition. We believe that understanding basic physiological metrics—such as Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE)—is the foundation of sustainable health.

Science-Backed Methodology

Our calculators utilize formulas recognized by global sports nutrition organizations and peer-reviewed studies:

• Mifflin-St Jeor Equation: Validated as the most precise non-laboratory formula for estimated resting metabolism.
• WHO Body Mass Index Criteria: Standard population screening brackets for healthy mass relative to height.
• Adaptive Activity Multipliers: Factoring occupational and athletic energy expenditure into daily caloric targets.

Privacy-First Philosophy

Unlike bloated fitness apps that require registration or track personal identity, Caltohub runs 100% client-side in your web browser. Your height, weight, and age remain entirely private to you.