Source | Age range | Weight, kg | Country |
Advanced Paediatric Life Support Course (APLS)3 | 1–10 | 2a+8 | UK |
Australian Resuscitation Council (ARC)4 | 1–9 | 2a+8 | Australia |
10+ | 3.3a | ||
Nelson5 | 1–6 | 2a+8 | USA |
7–12 | ½ (7a–5) | ||
Shann6 | 1–9 | 2a+9 | New Zealand |
10+ | 3a | ||
Tintinalli7 (similar to Leffler)8 | 1–12 | 2a+10 | USA |
Tinning9 (known as “Best Guess”) | 1–5 | 2a+10 | Australia |
6–14 | 4a | ||
Argall10 | 1–10 | 3a+6 | UK |
Luscombe11 | 1–10 | 3a+7 | UK |
Theron6 | 1–10 | e(2.197099 + 0.175571a) | New Zealand |
a, age in years.
For ease of comparison, formulae have been rearranged appropriately for consistency of layout and in order from smaller to larger. For example, the APLS formula is more commonly described as (a + 4)×2, which is the same as 2a+8.