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Íslenska Icelandic
Family	Sub-family	Language of	Script
Indo-European	Germanic	Iceland	Extended Latin

This section will cover Icelandic numbers and how to use them.

Contents 1 1 - 20 1.1 One to four 1.1.1 Uses 2 30 - 90

1 - 20

Numbers
digit	00	10
01	einn	ellefu
02	tveir	tólf
03	þrír	þrettán
04	fjórir	fjórtán
05	fimm	fimtán
06	sex	sextán
07	sjö	sautján, seytján
08	átta	átján
09	níu	nítján
10	tíu	tuttugu

One to four

In Icelandic, the numbers one to four are also declined similarly to adjectives. This means that for those four numbers there would be three different nominatives, three different accusatives etc. The entire declension system follows below.

EinnOne (SingularEintal)
CaseFall	MasculineKarlkyn	FeminineKvenkyn	NeuterHvorugkyn
NominativeNefnifall	Einn	Ein	Eitt
AccusativeÞolfall	Einn	Eina	Eitt
DativeÞágufall	Einum	Einni	Einu
GenitiveEignarfall	Eins	Einnar	Eins
EinnOne (PluralFleirtal)
NominativeNefnifall	Einir	Einar	Ein
AccusativeÞolfall	Eina	Einar	Ein
DativeÞágufall	Einum	Einum	Einum
GenitiveEignarfall	Einna	Einna	Einna

TveirTwo
CaseFall	MasculineKarlkyn	FeminineKvenkyn	NeuterHvorugkyn
NominativeNefnifall	Tveir	Tvær	Tvö
AccusativeÞolfall	Tvo	Tvær	Tvö
DativeÞágufall	Tveimur / Tveim1	Tveimur / Tveim	Tveimur / Tveim
GenitiveEignarfall	Tveggja	Tveggja	Tveggja

ÞrírThree
CaseFall	MasculineKarlkyn	FeminineKvenkyn	NeuterHvorugkyn
NominativeNefnifall	Þrír	Þrjár	Þrjú
AccusativeÞolfall	Þrjá	Þrjár	Þrjú
DativeÞágufall	Þremur / Þrem1	Þremur / Þrem	Þremur / Þrem
GenitiveEignarfall	Þriggja	Þriggja	Þriggja

FjórirFour
CaseFall	MasculineKarlkyn	FeminineKvenkyn	NeuterHvorugkyn
NominativeNefnifall	Fjórir	Fjórar	Fjögur
AccusativeÞolfall	Fjóra	Fjórar	Fjögur
DativeÞágufall	Fjórum	Fjórum	Fjórum
GenitiveEignarfall	Fjögurra / Fjögra1	Fjögurra / Fjögra	Fjögurra / Fjögra

• Note 1: In all these cases where there are two, the former is the most common used, although you might encounter the latter as well.

Uses

The gender or case of the four first numbers is always the same as the noun it represents. The reason einn has both a singular and a plural is that you use the plural form when talking about a pair of something. For example, one pair of trousers. When saying a bigger number like 81, 34 or even 1,245,672, the last number is still declined after the noun it represents. One exception is when talking about the time. In Icelandic, for telling the time, you say ”The clock is...” (Klukkan er) rather than ”It’s ... o’clock.” Even though ”clock” (klukka) is feminine, you still tell the time in neuter. Money is counted in the feminine (Það kostarIt costs fimmtiú og tværFifty-two kronúr.Króna, the currency of Iceland) When you count, for example telling someone how to count from 1 to 10 in Icelandic or playing hide-and-seek, you always use the masculine form.

Examples:

Jón á fjórar tölvur og Guðrún á fjóra hunda.
Jón owns four computers and Guðrún owns four dogs.

Hann lærði íslensku á þremur mánuðum!
He learnt Icelandic in three months!

Klukkan er tvö.
It’s two o’clock.

30 - 90

Additional numbers are added onto this group by saying the first number followed by og and the second number.

30-90
30 þrjátíu	40 fjörutíu	50 fimmtíu	60 sextíu	70 sjötíu	80 áttatíu	90 níutíu

Icelandic pages
Introduction · Adjectives · Adpositions · Articles · Irregular verbs · Lexicon · Nouns · Numbers · Pronouns · Questions · Sounds and Writing · Verbs · Vocab

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