This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.

• Fenton 2025 Growth Calculator / Fenton 2025 Growth Calculator

  Weight, length, head circumference according to the third-generation Fenton curves (2025); expected weight gain

• Fenton 2025 Electronic Growth Chart / Electronic Fenton 2025 Growth Chart

  Longitudinal course with curves and weight gain per week

• Fenton 2013 Growth Calculator / Fenton 2013 Growth Calculator

  Weight, length, head circumference by postmenstrual age; expected weight gain

• Fenton 2013 Electronic Growth Chart / Electronic Fenton 2013 Growth Chart

  Longitudinal course with curves and weight gain per week

• Fenton 2003 Growth Calculator / Fenton 2003 Growth Calculator (Legacy)

  Older preterm growth charts (2003, unisex) – for comparison with Fenton 2013

• Olsen 2010 Growth Calculator

  Intrauterine curves (USA): weight, length, head circumference 23–41 weeks

• Olsen 2015 BMI Calculator

  BMI percentile and z-score for preterm infants 24–41 weeks

• Size at birth (SGA/AGA/LGA)

  Classify birth weight by Fenton 2013, Fenton 2025, and INTERGROWTH-21st

• Growth velocity & required gain

  g/kg/day between two measurements; weekly gain to maintain the percentile (Fenton 2013)

• NICHD Extremely Preterm Birth Outcome Tool (22–25 weeks)

  Survival probability of actively treated and of all extremely preterm infants from gestational age, birth weight, sex, multiple-birth status and steroids (Rysavy 2020) – with neurodevelopmental data

← All calculators at a glance