Birth Weight Percentile
40 weeks, 3350g
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Evidence-based calculations Used in clinical settings worldwide Regular monitoring recommended
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👶 Healthy Term Boy
40 weeks, 3350g
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👧 Healthy Term Girl
39 weeks, 3100g
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⚠️ Preterm 32 Weeks
Moderate preterm
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📉 SGA Baby
Small for gestational age
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📈 LGA Baby
Large - diabetic mother
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Enter Newborn Data
For informational purposes only — not medical advice. Consult a healthcare professional before acting on results.
🏥 Health Facts
— WHO
— CDC
Understanding Birth Weight Percentiles
Birth weight percentiles compare your baby's weight to other babies of the same gestational age and sex. This helps identify babies who may need additional monitoring or support.
SGA (<10th)
Small for Gestational Age
- • Monitor for hypoglycemia
- • Frequent feeding
- • Temperature monitoring
AGA (10-90th)
Appropriate for Gestational Age
- • Normal birth weight
- • Routine care
- • Standard monitoring
LGA (>90th)
Large for Gestational Age
- • Check blood sugar
- • Screen for maternal diabetes
- • Birth injury assessment
Birth Weight Classifications
ELBW
<1000g
Extremely Low Birth Weight
VLBW
<1500g
Very Low Birth Weight
LBW
<2500g
Low Birth Weight
Normal
2500-4000g
Normal Birth Weight
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