1. What is Normal Birth Weight?

Normal birth weight is defined as a weight between 2500 grams (5.5 pounds) and 4000 grams (8.8 pounds) at birth for term infants (37-42 weeks gestation). This range is associated with the lowest risks of complications.

2. How Does the Calculator Work?

The calculator uses the following criteria:

Where:

• \( weight \) — Birth weight in grams
• 2500 g — Lower threshold for normal weight
• 4000 g — Upper threshold for normal weight

3. Importance of Birth Weight Classification

Details: Birth weight classification helps identify infants at risk for various complications. Low birth weight (<2500g) and macrosomia (>4000g) are both associated with increased health risks.

4. Using the Calculator

Tips: Enter the infant's birth weight in grams. The calculator will determine if the weight falls within the normal range for term infants.

5. Frequently Asked Questions (FAQ)

Q1: What if my baby was premature?
A: This calculator is for term infants. Premature babies have different weight expectations based on gestational age.

Q2: What are the risks of low birth weight?
A: Risks include difficulty maintaining temperature, feeding problems, increased infection risk, and potential developmental delays.

Q3: What are the risks of high birth weight?
A: Macrosomic infants may experience birth trauma, hypoglycemia, and have higher risk of obesity later in life.

Q4: Does this apply to multiple births?
A: Twins and other multiples often weigh less than singletons, so different standards may apply.

Q5: How accurate is birth weight measurement?
A: Digital scales typically measure to within 5-10 grams, but positioning and timing can affect readings.