Paediatric weight estimate and emergency doses (APLS)

Fluids & paediatrics

When you cannot weigh the child. Gives the APLS age-based estimate and the weight-based emergency numbers that hang off it.

What you enter

Age (years or months)

FORMULAWeight: (0.5 × months) + 4 | (2 × years) + 8 | (3 × years) + 7; adrenaline 10 µg/kg; bolus 10 mL/kg; glucose 10% 2 mL/kg; shock 4 J/kg; ETT (uncuffed) age/4 + 4

SourceAdvanced Paediatric Life Support: The Practical Approach, 6th ed (ALSG); Resuscitation Council UK Paediatric Advanced Life Support Guidelines 2021ReviewedFormula and thresholds checked against the source on 2026-08-22. If the source updates, this line will say so.