Baby Weight Percentile Calculator
Calculate your baby's weight percentile based on WHO growth charts. Compare against age and gender averages.
About Baby Weight Percentiles
Weight percentiles show how your baby compares to other babies of the same age and gender using WHO growth standards. The 50th percentile is average.
Understanding Results
- Below 3rd percentile: May need medical attention
- 3rd-15th: Below average but may be normal
- 15th-85th: Normal range
- 85th-97th: Above average
- Above 97th: May need medical attention
Disclaimer
This is an estimation tool. Consult your pediatrician for accurate growth assessment.
Disclaimer:This tool is provided “as is” for informational and educational purposes only. Results may not be 100% accurate. ToolBird makes no warranties, express or implied, regarding the accuracy, reliability, or completeness of any output generated by this tool. This tool does not constitute professional, legal, financial, medical, or tax advice. Always consult a qualified professional for important decisions. By using this tool, you agree that ToolBird and its operators shall not be held liable for any damages, losses, or consequences arising from the use of this tool or reliance on its results. All processing occurs in your browser — we do not store, transmit, or access your data. Use at your own risk.