Ngā tohutohu hei whakamahi: Hei huri rita (L) ki nga miera (ml), tomohia te rōrahi ki roto i te rita, whakapūtāhia te tika whakaawhiwhi o te hua (e rua nga waahi ira kua tautuhia ma te taunoa), ka pehi i te paatene “Tātai”. Ko te hua he uara i roto ml.
Tātaro л в ml
Tātai mō te whakamāori л в ml
V(ml) =V(L) ⋅1000
rōrahi V i roto i te miramira (ml) he rite te rōrahi V i roto i nga rita (L), whakareatia ki te 1000
Tuhipoka: karekau te rita me te mirimiri i roto i te punaha International SI, a, he waeine kore-raupapa o te ine i te rōrahi tinana.