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Calculation in Irish (Ríomh): Meaning, Pronunciation, Usage

‘ríomh’ also means: enumeration · narration · to calculate

The Irish for calculation is ríomh, a masculine noun (plural ríomhanna). Ag ríomh is calculating, from the verb ríomh.
Updated October 2026Report a mistake

How to say “calculation” in Irish

Irish:
ríomh
English:
calculation, enumeration, narration
Word type:
noun (verbal noun)
Verbal noun of:
ríomh, to calculate (ag ríomh, calculating)
Gender:
masculine, third declension
Pronunciation:
“reev”  /ɾˠiːvˠ/
Various forms
Plural:
ríomhanna (calculations)
Genitive singular:
ríomha, an ríomha (e.g. botún an ríomha, the error in the calculation)
Genitive plural:
ríomhanna, na ríomhanna (e.g. torthaí na ríomhanna, the results of the calculations)

What does “ríomh” mean?

“Ríomh” has three alternative meanings. The most common comes first.

calculation
The act of working something out with numbers; it is the verbal noun of the verb ríomh, to calculate or count.Also: computation, counting, reckoning.
2 other meanings: enumeration or narration
2enumeration
The act of listing or counting things one by one.Also: counting, listing.
3narration
The act of relating or telling a story or account.Also: recounting, telling.
Other entries for “ríomh”

The same spelling has its own page as:

“Ríomh” as a verbal noun

After ag, ríomh means calculating: it is the verbal noun of the verb ríomh (to calculate). A noun that follows it goes into the genitive.

agat
+
ríomhverbal noun
=
ag ríomhcalculating

“Ríomh” with the article

The plural of calculation in Irish is ríomhanna. Here is ríomh after the article (an t-alt), in the singular and the plural.

an ríomh
the calculation
No change after an
na ríomhanna
the calculations
Plural: no change after na

“Ríomh” in a sentence: Irish examples

Common Irish sentences using ríomh, the Irish word for calculation.

Rinne sí ríomh tapa ina ceann.
She did a quick calculation in her head.
Bhí an ríomh mícheart ar fad.
The calculation was completely wrong.
Tá botún i lár an ríomha.
There's a mistake in the middle of the calculation.
Seiceáil na ríomhanna sin arís, le do thoil.
Check those calculations again, please.
De réir mo ríomha, tá fiche euro fágtha.
By my reckoning, there are twenty euro left.
Is deacair na ríomhanna seo a dhéanamh gan áireamhán.
These calculations are hard to do without a calculator.

Other nouns in Irish

More everyday Irish nouns to learn next.

Calculation in Irish: frequently asked questions

What is the Irish for calculation?

The Irish for calculation is ríomh (pronounced “reev”). It’s a masculine noun and the plural is ríomhanna. Depending on context it can also mean enumeration or narration.

How do you pronounce ríomh in Irish?

Ríomh is said like “reev” (IPA /ɾˠiːvˠ/).

What is the plural of calculation in Irish?

The plural of ríomh is ríomhanna; with the article, na ríomhanna means “the calculations”. The genitive plural is ríomhanna, as in torthaí na ríomhanna (the results of the calculations).

Does ríomh have more than one meaning?

Yes. Ríomh can mean calculation, enumeration or narration, depending on context; the first is the most common. Ríomh also has its own entry as a verb meaning to calculate.

How is ríomh related to ríomhaire?

Ríomhaire, computer, is built from ríomh, calculation, literally 'a calculator'. The same root gives ríomhphost, email.

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