New Ballard Score (gestational age)
New Ballard Score (gestational age) - a deterministic tool in Sophie Well's Pediatrics & Neonatal group.
Open the New Ballard Score (gestational age) → Runs in your browser. No signup, no tracking.
What this is
New Ballard Score (gestational age) is one of 230 deterministic tools in Sophie Well's Pediatrics & Neonatal group. New Ballard Score (gestational age) - a deterministic tool in Sophie Well's Pediatrics & Neonatal group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Ballard JL, et al. J Pediatr. 1991;119(3):417-423 (New Ballard Score, extended to 20 weeks). GA = 24 + 0.4 x maturity score; precision +/-2 weeks. Read the source ↗
Worked example: Maturity score 36; estimated gestational age 38.4 weeks (+/-2).
Sophie Well is a reference and educational tool. Not medical, legal, or financial advice. Does not replace clinician judgment, professional billing review, or legal counsel.