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Calculators for dietitians and health professionals
Nutritional assessment tools based on the technical standards of the Chilean Ministry of Health and on published reference tables. Each one shows its source and how the figure is worked out. Everything runs in your browser and nothing is stored.
BMI z-score
Work out the BMI-for-age z-score by age and sex, using the LMS formula and the Chilean MINSAL 2018 tables. Shows the classification and every step. Free.
Children and adolescents aged 5 to 18 years (60 to 228 months).
Open calculator →BMI
Work out the body mass index (BMI) from weight in kilograms and height in centimetres. Shows the BMI in kg/m² and the height squared. Free.
Any age: it asks only for weight and height and returns the figure, without classifying it.
Open calculator →Corrected age
Work out a preterm infant's corrected age from the gestational weeks and the dates of birth and assessment. Shows the formula step by step. Free.
Preterm infants: age is corrected up to 24 months for those born before 32 weeks and up to 12 months for the rest.
Open calculator →Blood pressure
Assess systolic and diastolic blood pressure in children and adolescents aged 2 to 17 by sex, age and height, using the NHLBI tables. Free.
Children and adolescents aged 2 to 17 (age in completed years).
Open calculator →Down syndrome
Assess weight, height and head circumference for age in children with Down syndrome up to 15 years, using the Fundació Catalana percentiles. Free.
Children with Down syndrome, from the first month of life to 15 years.
Open calculator →Preterm infants
Assess preterm infants by corrected age: weight, length, head circumference and ponderal index with Chilean intrauterine curves and WHO standards. Free.
Babies born before 37 weeks, up to 24 months of corrected age (born before 32 weeks) or 12 months (32 to 36 weeks).
Open calculator →Newborn weight gain
Work out a term newborn's daily weight gain up to 31 days: expected weight, percentage of expected weight and WHO nutritional status. Free.
Term newborns, from birth to 31 days of life.
Open calculator →Fluid ounces to cc
Convert fluid ounces (fl oz) to cubic centimetres (cc or ml) and back. Uses 1 fl oz = 29.57353 cc and gives the result to one decimal place. Free.
Volumes in fluid ounces or in cubic centimetres, whole or with decimals.
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