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Body & Nutrition

BMI, calorie tracking, and hydration tools

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Bmi Calculator - Free Online Tool

Calculate your Body Mass Index (BMI) to assess if your weight is in a healthy range. Uses WHO classifications and provides visual feedback.

FeaturedIntermediate

Calorie Calculator - Free Online Tool

Calculate your daily calorie needs based on the Mifflin-St Jeor equation. Includes BMR, TDEE, and macro suggestions for your goals.

FeaturedIntermediate

Army Body Fat Calculator (One-Site Tape Test)

Estimate your body fat with the Army's one-site abdominal tape equation, apply AR 600-9 rounding, and see whether you meet the maximum for your age group.

Beginner

Baby Growth Percentile Calculator (Weight, Length, Head)

Find your baby's weight, length and head circumference percentiles from birth to 24 months, using the WHO growth standards that the CDC recommends for children under 2.

Intermediate

BMI Percentile Calculator for Kids & Teens

Find a child's BMI-for-age percentile (ages 2 to 20) from CDC growth charts, including CDC's extended method for BMIs above the 95th percentile.

Intermediate

Height & Weight Percentile Calculator for Kids (2-20)

Find your child's height-for-age and weight-for-age percentiles from the CDC 2000 Growth Charts, for boys and girls aged 2 to 20, in inches and pounds or centimeters and kilograms.

Intermediate