1. What is Baby Weight Loss Percentage?

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

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• Birth weight — The baby's weight at birth (in pounds)
• Current weight — The baby's current weight (in pounds)

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 their birth weight in the first few days. Losses greater than 10% may indicate feeding problems or other health issues requiring medical attention.

4. Using the Calculator

Tips: Enter both weights in pounds. For accurate results, use weights measured on the same scale. Weights should be recent (within 24 hours for current weight).

5. Frequently Asked Questions (FAQ)

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

Q2: When should I be concerned about weight loss?
A: If loss exceeds 10% or continues beyond 5 days, consult your pediatrician.

Q3: How often should I weigh my baby?
A: In first week, daily weights are helpful. After that, weekly may be sufficient unless concerns exist.

Q4: Does this apply to premature babies?
A: Premature babies may lose more (up to 15%) and take longer to regain - follow your NICU team's guidance.

Q5: Can I use kilograms instead of pounds?
A: The calculator currently uses pounds, but you can convert kg to lbs (1 kg = 2.20462 lbs) if needed.