Olsen 2015 BMI calculator for preterm infants

Sex
Dates: LMP, due date, birth, day of life
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All growth charts

Preterm
Infants and young children
Children and adolescents (2–20 years)
Special populations
Arm circumference and skinfolds
Legacy charts

U.S. preterm infants, 24 to 41 completed weeks: BMI.

BMI is calculated from weight and length, in g/cm² × 10 (as published; numerically the same as kg/m²).

Tips

  • Enter the bare minimum:
    • Can enter just sex, gestational age, and growth metrics, without dates, if desired
    • If only a gestational age is entered, the 50th percentile values will be displayed
    • If any dates are entered, the other dates and ages are calculated where possible
  • Gestational age and dates can be calculated under Dates: LMP, due date, birth, day of life.
  • Gestational age: weeks and days, e.g. 30 3/7 (30+3 also works)
  • Weight: grams. To enter pounds and ounces, enter e.g. 8-4 for 8 lb 4 oz
  • Length: cm. For inches, enter e.g. 20"

Based on