About Us

Our Mission

Health data should be accessible to everyone — not locked behind paywalls, confusing jargon, or unreliable sources. We built myFitness&Health Calculator to give every person, free of charge, the same evidence-based formulas used by clinicians, nutritionists, and sports scientists.

From body composition and metabolic rate to pregnancy milestones and training zones, our 22+ calculators are grounded in established medical research. We cite our sources, explain our methodology, and update our tools as the science evolves. Whether you are a beginner, an athlete, or an expectant parent, our goal is to empower you with clarity and confidence in your health journey.

Our tools are designed for a wide audience:

• Beginners starting their fitness journey and wanting to understand baseline metrics like BMI and daily calorie needs.
• Athletes and fitness enthusiasts optimising body composition, training zones, and macronutrient intake for performance.
• Expectant parents tracking pregnancy milestones, due dates, and healthy weight gain week by week.
• Healthcare students and professionals who need quick, reliable reference calculations at the point of care.

Because our content falls under Google's "Your Money or Your Life" (YMYL) health category, we hold ourselves to the highest standards of expertise, authoritativeness, and trustworthiness (E-E-A-T).

Every calculator is built using validated clinical formulas — such as Mifflin-St Jeor for metabolic rate, the U.S. Navy circumference method for body fat, and Naegele's Rule for due dates. Our content is reviewed for accuracy, clearly sourced, and updated as medical guidelines change. Learn more in our full Editorial Policy .