Paediatric Weight Estimation Calculator
Estimate a child's weight based on their age using standard clinical formulas (APLS, Best Guest).
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Result
Enter values above and click Calculate to see your result.
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Our AI assistant provides general estimates and advice only. Please consult a qualified healthcare professional before making any health-related decisions.
Formula
How it works: Calculates an approximate weight for use in emergency situations where a scale is not available. Formulas vary by age bracket.
Worked Example
Frequently Asked Questions
What is the APLS formula?
For children aged 1-10 years, the APLS formula is Weight (kg) = (Age + 4) * 2.
Is this exact?
No. Clinical formulas provide an estimate. Whenever possible, an actual weight from a scale should be used for precise dosing.
Which formula is best?
APLS is widely taught in resuscitation courses, while the "Best Guest" formula was developed to better reflect modern childhood weights.
Can I use this Paediatric Weight Estimation Calculator on my own web page?
You can. Look for the "Embed" button near the top of this calculator. It lets you pick a size, border style, and color palette, then gives you an iframe tag to paste into any webpage. The widget is responsive, loads fast, and costs nothing. More details at calculory.com/services/embed-calculators.
Medical Disclaimer
This calculator is provided for informational and educational purposes only. It is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making any decisions based on these results. Do not disregard or delay seeking medical advice because of information obtained from this tool.
AI Assistant
Ask about this calculator
I can help you understand the paediatric weight estimation calculator formula, interpret your results, and answer follow-up questions.
Try asking
Our AI assistant provides general estimates and advice only. Please consult a qualified healthcare professional before making any health-related decisions.
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