Numbers

Do you know how to count in Irish? Learn some helpful words and phrases and test yourself on others you may already know!

1-19

IrishEnglish
aon1
2
trí3
ceathair4
cúig5
6
seacht7
ocht8
naoi9
déag10
aon déag11
dó dhéag12
trí déag13
ceathair déag14
cúig déag15
sé déag16
seacht déag17
ocht déag18
naoi déag19

When counting in Irish the spellings and even sounds of the numbers sometimes change.

When counting on fingers, or numbering things like train platforms, add a in front of the number. For example, ticket number 3 is ticéid uimhir a trí, and platform 5 is ardán a cúig. Most of the time, you only need to add a in front of the number.

However, some number spellings are changed, and will sound slightly different because of it.

  • aon (1) becomes a haon
  • ocht (8) becomes a hocht
  • déag (10) becomes a deich

20-100

IrishEnglish
fiche20
tríocha30
daichead40
caoga50
seasca60
seachtó70
ochtó80
nócha90
céad100

When counting in Irish from 21-99, take the multiple of ten and then add the basic number after this. For example...

  • twenty-five (25) is fiche + a cúig = fiche a cúig

  • forty-three (43) is daichead + a trí = daichead a trí

  • eighty-nine (89) is ochtó + a naoi = ochtó a naoi

However, it's really important to remember that there are different rules when counting people or things.

Learn more about counting people, things and ordinals in this guide.