Health & Fitness Calculators
25 free, science-backed calculators covering nutrition, fitness, hydration, and wellness.
Nutrition
11Daily Calorie Intake Calculator
Estimate your daily caloric needs based on age, gender, weight, height, and activity level.
Macronutrient Split Calculator
Calculate daily protein, carbs, and fat percentages based on total calories.
Daily Nutrient Intake Calculator
Calculate recommended daily intake of essential nutrients like vitamins and minerals.
Meal Portion Size Planner
Determine appropriate portion sizes for meals based on caloric and macronutrient goals.
Sugar Intake Tracker
Track daily sugar consumption and compare it to recommended limits.
Food Calorie Counter
Input meals and calculate total calories consumed daily.
Fiber Intake Calculator
Estimate daily fiber needs and track intake from meals.
Sodium Intake Monitor
Track sodium consumption and ensure it stays within healthy limits.
Protein Requirement Estimator
Calculate daily protein needs based on weight, activity level, and fitness goals.
Healthy Snack Planner
Recommend healthy snack options that fit dietary preferences and goals.
Recipe Nutrition Analyzer
Analyze the nutritional content of recipes and suggest healthier alternatives.
Hydration
3Water Intake Tracker
Calculate and track your recommended daily water intake based on body weight and activity level.
Hydration Percentage Estimator
Estimate hydration levels and get alerts if dehydrated.
Hydration Needs Based on Diet
Calculate hydration needs based on dietary factors like caffeine, alcohol, and sodium intake.
Fitness
4Step Goal and Walking Distance Calculator
Convert steps into distance walked and set daily step goals for fitness.
Heart Rate Zone Calculator
Calculate target heart rate zones for optimal exercise intensity.
Workout Recovery Time Calculator
Estimate recovery time needed after intense workouts.
Protein Requirement Estimator
Calculate daily protein needs based on weight, activity level, and fitness goals.
Wellness
5Sleep Duration and Quality Calculator
Recommend ideal sleep duration and track bedtime/wake-up times for better rest.
Stress Level Assessment Tool
Assess stress levels with a questionnaire and get tips for stress management.
Mindful Breathing Timer
Guide breathing exercises with customizable timers for relaxation or focus.
Posture Correction Reminder
Track sitting time and remind users to correct posture or take breaks.
Mental Health Mood Tracker
Log daily mood ratings and activities to identify patterns and triggers.
Health
3Body Mass Index (BMI) Calculator
Calculate your BMI based on height and weight to assess your health status.
Menstrual Cycle and Ovulation Tracker
Predict menstrual cycle phases and ovulation dates for fertility planning.
Alcohol Consumption and BAC Calculator
Estimate blood alcohol content and safe drinking limits.