Health Calculators
Free health and fitness calculators based on evidence and medical guidelines. Track your health metrics and make informed wellness decisions.
Health Disclaimer
These calculators provide estimates for educational purposes. Always consult healthcare professionals for medical advice.
BMI Calculator
Calculate your Body Mass Index (BMI). Understand what your BMI means for your health and get personalized recommendations.
Body Fat Calculator
Estimate your body fat percentage using multiple methods. More accurate than BMI for fitness assessment.
Calorie Calculator
Calculate your daily calorie needs based on activity level and goals. Plan for weight loss, maintenance, or gain.
Macro Calculator
Calculate your optimal macronutrient split. Get protein, carb, and fat targets for your goals.
Ideal Weight Calculator
Calculate your ideal weight range using multiple formulas. Understand healthy weight for your height.
Water Intake Calculator
Calculate how much water you should drink daily based on weight, activity, and climate.
Pregnancy Due Date
Calculate your estimated due date based on last menstrual period or conception date.
Heart Rate Zones
Calculate your heart rate training zones for cardio, fat burning, and peak performance.
BMI Categories (Adults)
*BMI is a general indicator. It doesn't account for muscle mass, bone density, or body composition. Athletes may have high BMI but healthy body fat.
Australian Health Statistics
Obesity Rate
31.7% of adults
Physical Activity
55% meet guidelines
Life Expectancy
83.2 years
Recommended Exercise
150 min/week moderate
Australian Dietary Guidelines
| Nutrient | Women | Men |
|---|---|---|
| Calories (avg) | 1,800-2,000 kcal | 2,200-2,600 kcal |
| Protein | 46g | 64g |
| Fibre | 25g | 30g |
| Water | 2.1L | 2.6L |