Work out vaccine dose volume instantly with clear inputs, formula shown and shareable results.
Divides the usable vial volume by the dose volume to give the number of full doses obtainable, including any labelled overfill.
Doses per vial
Doses = floor(vial volume x (1 + overfill) / dose volume); residual = usable volume - doses x dose volume
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
A partial dose cannot be given, so any remainder is discarded.
Yes. They recover the volume normally trapped in the needle hub, which is how extra doses were obtained from COVID-19 vials.