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
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Formula
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.
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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