| Subject | English | Icelandic |
| comp., MS | actual quantity | raunverulegt magn (The measured quantity that is input into or output from an activity) |
| comp., MS | fixed quantity kanban | kanban í föstu magni (A type of kanban that is used when the number of kanbans that are assigned to a kanban rule is constant) |
| comp., MS | kanban product quantity | kanban-afurðafjöldi (The number of item requirements that are carried on a kanban based on a kanban rule) |
| comp., MS | kanban quantity | kanban-magn (The numeric parameter in a kanban rule that controls the number of kanbans to create when the rules product requirement condition is met and the rule is evaluated) |
| math. | pivotal quantity | mikilvægur magn |
| math. | quantity relative | magni miðað |
| comp., MS | quantity variance | magnfrávik (The difference between an ordered product quantity and a received product quantity when no more receipts are expected) |