Fit and Care’s free health calculators help you turn raw numbers — your weight, height, age, and activity level — into clear, actionable insight. Each tool below links to a full guide explaining what the metric means, how it’s calculated, and how to use the result safely as part of a broader fitness or wellness plan. None of these calculators are a substitute for professional medical advice; they’re meant to inform, not diagnose.
Fitness & Body Composition
BMI Calculator — Estimate your Body Mass Index and understand what your weight-to-height ratio means for your health, including its limitations for athletes and other special cases.
BMR & TDEE Calculator — Find your Basal Metabolic Rate and Total Daily Energy Expenditure, the foundation for any calorie or weight-management plan.
Nutrition Planning
Macro & Calorie Planner — Calculate your daily calorie target along with a protein, carb, and fat breakdown tailored to your goals.
Habits & Goal Tracking
Goal Planner & Habit Tracker — Set SMART goals, break them into milestones, and track daily habits with a built-in journal and calendar.
Have a suggestion for a calculator you’d like to see on Fit and Care? Let us know.