Premium Health Calculators

Estimate important health indicators such as BMI, BMR, ideal weight, water intake, pregnancy due date, age and waist–hip ratio.

BMI Calculator

Estimate body mass index and weight category.

Weight (kg)

Height (cm)

Estimate resting calorie use and maintenance calorie need.

Gender

Age

Weight (kg)

Height (cm)

Activity

Estimate ideal weight using height and gender.

Gender

Height (cm)

Estimate daily water intake from body weight.

Weight (kg)

Activity / Climate

Estimate due date from the first day of last menstrual period.

LMP Date

Calculate completed age in years, months and days.

Date of Birth

Estimate fat distribution risk using waist and hip measurements.

Gender

Waist (cm)

Hip (cm)

Educational estimates only. These calculators are not a medical diagnosis and do not replace consultation with a qualified healthcare professional.

Useful screening indicator for weight category, but it does not measure body fat directly.

Approximate calories required by the body at rest; activity changes total daily calorie needs.

Hydration needs vary with body weight, sweating, climate, fever and physical activity.

Helps estimate central fat distribution; higher values may indicate increased metabolic risk.