How to Count to 10 in Icelandic (Say Them Out Loud)

The numbers 1 to 10 in Icelandic

Icelandic keeps two letters, thorn and eth, that old English once had. Here are the numbers with pronunciation hints.

• 1 einn (aydn)
• 2 tveir (tvayr)
• 3 þrír (threer, th as in thin)
• 4 fjórir (FYOH-rir)
• 5 fimm (fimm)
• 6 sex (sex)
• 7 sjö (syur)
• 8 átta (OW-ta)
• 9 níu (NEE-oo)
• 10 tíu (TEE-oo)

The letter þ (thorn) is a th as in thin. The letter ð (eth), not shown in these forms, is the soft th as in this. The accented á is an ow sound as in house.

The letters thorn and eth

These two characters are the friendliest surprise in Icelandic, because they map neatly onto sounds you already make. þ (thorn) is the hard, voiceless th in thin or three. That is why þrír (three) begins exactly like the English word three, giving threer.

Its partner ð (eth) is the soft, voiced th in this or mother. It does not begin any of the numbers 1 to 10, but you will meet it constantly elsewhere. English used both letters centuries ago and then dropped them, folding both sounds into the single spelling th. Icelandic kept them distinct, so once you know which is which, you actually have more information than English spelling gives you.

Accented vowels change the sound

In Icelandic, a vowel with an accent is a completely different sound from the same vowel without one, not just a longer version. This matters in several numbers. The á in átta (eight) is an ow sound as in house, so eight is OW-ta, not AH-ta.

The í in þrír, níu, and tíu is a clear ee, while the ö in sjö (seven) is a rounded vowel like the German ö or the vowel in her without the r, giving something close to syur. Treat each accented vowel as its own letter to learn. English speakers who read them as plain vowels end up saying different words, so respecting the accents is key to being understood.

Common mistakes learners make

English speakers repeat a few errors.

• Reading á as a plain a. The á in átta is an ow sound, giving OW-ta.
• Confusing thorn and eth. þ is the hard th in thin, ð is the soft th in this.
• Flattening sjö. The ö is a rounded vowel, close to the German ö.
• Ignoring gender. One, two, three, and four change form with the noun's gender.

Respecting the accents fixes most pronunciation errors.

The first four numbers change form

Here is a grammar note worth knowing early. Icelandic nouns have three genders, and the numbers one through four change form to match. The forms above, einn, tveir, þrír, fjórir, are the masculine ones often used for plain counting.

When you count feminine or neuter nouns, these four take different endings, for example ein and tvær in the feminine. Numbers five and above do not change, which is a relief. You do not need the full set to count out loud, so learn the counting forms first and add the gendered variants when you start attaching numbers to real nouns. Just be aware that the first four are the ones that shift.

How to make them stick

The accented vowels and the th letters are precise sounds, so reading the list once does little. You build accuracy by saying the numbers out loud and copying native audio closely.

Count stairs, count coins, say your phone number one digit at a time. The best drill is trading numbers with a real speaker or an AI speaking partner that answers back, so you produce the ow vowel and the th sounds under a little pressure rather than only recognizing them. Short spoken sessions beat long silent ones, and Icelandic, which looks archaic on paper, starts to feel approachable within a few days of speaking.