This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.
ETT depth / tube depth
Insertion depth from the lip: 3 × inner diameter, age/2 + 12 and Tochen formula for newborns
Calculation aid for healthcare professionals: the calculator reproduces what the sources cited assign to the inputs. Clinical assessment and every treatment decision remain with the treating physician. Inputs and results are not stored.