1. What is Newborn Weight Loss Percentage?

The newborn weight loss percentage calculates how much weight a baby has lost since birth compared to their birth weight. It's an important metric for assessing newborn health and feeding adequacy in the first days of life.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( \text{Birth Weight} \) — Baby's weight at birth in grams
• \( \text{Current Weight} \) — Baby's current weight in grams

Explanation: The formula calculates what percentage of the original birth weight has been lost.

3. Importance of Monitoring Weight Loss

Details: Newborns typically lose 5-7% of birth weight in first few days, with 10% or more loss warranting evaluation. Monitoring helps identify feeding problems or health issues early.

4. Using the Calculator

Tips: Enter birth weight and current weight in grams (use same units for both). Weights must be positive numbers, with current weight less than birth weight for meaningful results.

5. Frequently Asked Questions (FAQ)

Q1: What is normal newborn weight loss?
A: 5-7% loss is typical in first 3-5 days. Most babies regain birth weight by 10-14 days.

Q2: When should I be concerned?
A: If loss exceeds 10%, or if baby isn't regaining weight by day 5-7, consult your pediatrician.

Q3: How often should I weigh my newborn?
A: Daily in first week if concerns exist, otherwise at pediatric visits. Use same scale each time.

Q4: Does breastfeeding affect weight loss?
A: Breastfed babies may lose slightly more initially but should follow similar patterns overall.

Q5: What affects weight loss accuracy?
A: Timing of feedings relative to weighing, scale calibration, and clothing/diaper weight can influence results.