Og (eggshell)
55 mL
Baseline unit
Honey and hospitality
Measures of honey and drink
A visual converter for reported medieval Irish vessel measures. These approximate capacities were supplied as contextual material and are kept distinct from the measurements explicitly attested in the uploaded edition.
The objects shown are interpretive reconstructions of likely vessel forms, not surviving vessels identified with these named measures. Their displayed sizes are not to scale.
Méisrin (little measure)
660 mL
12 og
Olderb (great vessel)
7.92 L
12 méisrins · 144 og
Oilmedach (great mead vessel)
95 L
Reported as about 95 L
Mether
Capacity unknown
No fixed capacity recorded
Convert a measure
≈ 55 mL
- Og (eggshell)
- Supplied contextual measurement; not named in the uploaded Bechbretha edition.
- Méisrin (little measure)
- Approximate modern capacity derived from the supplied baseline.
- Olderb (great vessel)
- Approximate modern capacity derived from the supplied baseline.
- Oilmedach (great mead vessel)
- Supplied estimate. It cannot also equal 144 og: that calculation gives 7.92 L, so the relationship remains unresolved.
- Mether
- A communal wooden drinking vessel, attested from the eleventh century onward; shape does not establish one standard volume.