NICU Copilot

Growth Charts

Fenton (preterm) and WHO (term) percentile & z-score.

Sex
Weight
Enter value for %ile / z
3rd
1.42
10th
1.58
50th
1.90
90th
2.24
97th
2.46
Length
Enter value for %ile / z
3rd
38.0
10th
39.5
50th
42.5
90th
45.0
97th
46.5
Head circumference
Enter value for %ile / z
3rd
27.0
10th
28.0
50th
29.0
90th
30.5
97th
31.0
View growth chart
Fenton preterm growth chart — boys3%10%50%90%97%2530354045505560Length (cm)3%10%50%90%97%182022242628303234363840Head circumference (cm)3%10%50%90%97%Weight (kg)222426283032343638404244464850PMA (weeks)
····3rd · - - 10th · —— 50th · - - 90th · ····97th

Percentiles are approximated from the published Fenton 2013 preterm growth chart and the WHO Child Growth Standards, sampled at weekly (Fenton) or monthly (WHO) intervals and linearly interpolated. This is an educational estimate — always verify against the official chart or your unit's growth-monitoring tool before clinical action.

Important Notice

Please read before continuing

The Baby Copilot is an educational and informational clinical reasoning support tool intended for licensed healthcare professionals and trainees. It is not a medical device and is not intended to diagnose, treat, cure, prevent, or manage any patient condition.

Outputs generated by The Baby Copilot are AI-generated educational suggestions based on user-provided information and may be incomplete, inaccurate, or inappropriate for a specific clinical situation. All clinical decisions remain solely the responsibility of the treating healthcare professional.

Do not enter protected health information (PHI), patient-identifiable information, medical record numbers, dates of birth, or any other sensitive patient data into this platform.

By continuing, you acknowledge and agree that:

  • The Baby Copilot does not replace clinical judgment.
  • You will independently verify all information.
  • You will not rely on this platform as the sole basis for patient care decisions.
  • You are responsible for complying with all applicable privacy, confidentiality, and healthcare laws and regulations.

© 2026 The NeQu LLC