The first thing to internalise about Swedish plurals is what they are not: there is no -s plural. The English reflex — add -s to anything — is wrong for every native Swedish noun, and it is the most common single error English speakers make with nouns. Instead, Swedish sorts its nouns into five plural declension classes, each named for the ending its indefinite plural takes. This page maps all five and, crucially, gives you the prediction rules that turn an apparently random system into a mostly forecastable one. Each class then gets its own detail page for the full paradigms.
The five classes at a glance
Here are the five declensions, named by their indefinite-plural ending, each with a model noun:
| Class | Ending | Model noun | Singular → plural | Typical gender |
|---|---|---|---|---|
| 1 | -or | en flicka | flicka → flickor(girls) | common |
| 2 | -ar | en bil | bil → bilar(cars) | common |
| 3 | -er | en sak | sak → saker(things) | common & neuter |
| 4 | -n | ett äpple | äpple → äpplen(apples) | neuter |
| 5 | — (zero) | ett hus | hus → hus (houses) | mostly neuter |
Det satt fem flickor och tre pojkar på bänken.
Five girls and three boys sat on the bench. Class 1 (flickor) and class 2 (pojkar) side by side.
Jag har många saker att göra och inga äpplen i kylen.
I have many things to do and no apples in the fridge. Class 3 (saker) and class 4 (äpplen).
Det finns två hus och tre djur på gården.
There are two houses and three animals on the farm. Class 5 zero plural: hus and djur are unchanged.
The prediction rules: gender + final sound
This is the part most resources leave out, and it is what makes the five classes manageable. The declension is not assigned at random — it correlates strongly with two things you can already see: the noun's gender and its final sound. Put them together and you can predict the plural class correctly about 80% of the time. Here is the working ruleset, in priority order:
| If the noun… | …it usually takes | Class | Example |
|---|---|---|---|
| is an en-word ending in unstressed -a | drop -a, add -or | 1 | en gata → gator |
| is an en-word, many one-syllable or in -e/-ing/-dom | -ar | 2 | en dag → dagar |
| is an en-word, often a one-syllable or a loanword | -er | 3 | en sak → saker |
| is an ett-word ending in a vowel | -n | 4 | ett äpple → äpplen |
| is an ett-word ending in a consonant | zero (no ending) | 5 | ett hus → hus |
Two of these are very nearly laws rather than tendencies. An en-word in unstressed -a takes -or — this is the most reliable cue in the whole noun system. And an ett-word ending in a consonant takes the zero plural — neuter consonant-final nouns almost never add an ending. The genuine grey zone is between class 2 (-ar) and class 3 (-er) for one-syllable en-words: en bil takes -ar but en sak takes -er, and there is no audible rule that separates them. That boundary is where memorisation still earns its keep, and it is exactly where loanwords cluster in class 3.
Två gator bort ligger det tre kaféer.
Two streets away there are three cafés. -a noun → gator (class 1); the loan kafé → kaféer (class 3, -r after a vowel).
Vi köpte fem äpplen och två bröd.
We bought five apples and two loaves of bread. Vowel-final ett-word → äpplen (class 4); consonant-final ett-word → bröd, zero plural (class 5).
What each class looks like in full
Every noun has four forms, and the plural class fixes both the indefinite plural and the definite plural. Here is one model noun per class run across all four forms, so you can see the whole shape before diving into the detail pages:
| Class | Indef. sing. | Def. sing. | Indef. plural | Def. plural |
|---|---|---|---|---|
| 1 (-or) | en flicka | flickan | flickor | flickorna |
| 2 (-ar) | en bil | bilen | bilar | bilarna |
| 3 (-er) | en sak | saken | saker | sakerna |
| 4 (-n) | ett äpple | äpplet | äpplen | äpplena |
| 5 (zero) | ett hus | huset | hus | husen |
Notice the definite plural endings: classes 1–3 add -na to the indefinite plural (flickor → flickorna, bilar → bilarna, saker → sakerna); class 4 also takes -na (äpplen → äpplena, with a linking vowel); and class 5 takes -en (hus → husen). The systematic story of the definite plural is on its own page, The Definite Plural — here just note that the indefinite-plural ending you learn carries straight into the definite form.
Flickorna och pojkarna spelar fotboll på gården.
The girls and the boys are playing football in the yard. Definite plurals: flickorna (class 1) and pojkarna (class 2).
Husen på gatan är gamla, men sakerna inuti är nya.
The houses on the street are old, but the things inside are new. Definite plurals: husen (class 5, -en) and sakerna (class 3, -na).
Watch for stem changes
A minority of nouns alter the stem when they pluralise, and the spelling changes can trip you up:
- Dropped final -e. Class 2 nouns ending in -e drop it before -ar: en pojke → pojkar (not pojkear). Likewise en timme → timmar and en pinne → pinnar.
- Umlaut (vowel change). A small set of high-frequency nouns change their stem vowel in the plural — a → ä, o → ö, u → ö — and these belong to class 3 or the zero class, not classes 1–2: en hand → händer, en bok → böcker, en son → söner, en man → män. These are covered on Irregular Plurals; don't expect to predict them.
Note that letters å, ä, ö are full letters in their own right (not decorated a/o), so an umlaut plural genuinely changes the spelling and must be written with the new letter every time.
Tvätta händerna innan vi äter.
Wash your hands before we eat. Umlaut plural: hand → händer (class 3), a → ä — write the ä in full.
Jag lånade tre böcker på biblioteket.
I borrowed three books from the library. Umlaut plural: bok → böcker, o → ö.
Common Mistakes
❌ tre flickas / fem bils / två saks
Incorrect — there is no -s plural in Swedish. Use the declension endings.
✅ tre flickor / fem bilar / två saker
three girls / five cars / two things — classes 1, 2, 3.
❌ en gata → gataor / gatas
Incorrect — class 1 drops the final -a before -or: gata → gator.
✅ en gata → gator
a street → streets — drop the -a, add -or.
❌ ett hus → huser / husar
Incorrect — a consonant-final ett-word takes the zero plural; the form is unchanged.
✅ ett hus → hus
a house → houses — no ending in the indefinite plural (class 5).
❌ en hand → handar (treating it as class 2)
Incorrect — 'hand' is an umlaut noun in class 3: hand → händer, not handar.
✅ en hand → händer
a hand → hands — umlaut a → ä, class 3.
Key Takeaways
- Swedish builds plurals through five declension classes — -or, -ar, -er, -n, zero — and never with -s.
- Gender + final sound predicts the class ~80% of the time. Two cues are near-laws: en-word in -a → -or (class 1), and consonant-final ett-word → zero (class 5).
- The remaining uncertainty is mostly -ar vs -er for one-syllable en-words — learn those individually; loanwords cluster in -er (class 3).
- The indefinite-plural ending carries into the definite plural: classes 1–4 take -na/-a, class 5 takes -en.
- Watch stem changes: dropped -e before -ar (pojke → pojkar) and a small set of umlaut plurals (hand → händer, bok → böcker) that live in classes 3 and 5.
Now practice Swedish
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- Plural Class 1: -orA2 — The first Swedish plural declension: en-words ending in unstressed -a drop the -a and add -or (en flicka → flickor), with definite plural -orna (flickorna). It is the most predictable class of all — the -a ending almost guarantees -or — which makes it the ideal one to learn first.
- Plural Class 2: -arA2 — The second and largest Swedish plural declension: en-words that add -ar (en bil → bilar, en dag → dagar), including -e nouns that drop the -e first (en pojke → pojkar) and -ing/-dom nouns. Definite plural -arna (bilarna). Because so many everyday concrete nouns live here, this class delivers the most usable vocabulary fastest.
- Plural Class 3: -er and Umlaut PluralsB1 — The third Swedish plural declension: the indefinite plural in -er, covering many one-syllable en-words (sak → saker), stress-final loanwords (station → stationer, parti → partier), and a small closed set of umlaut nouns whose stem vowel changes (hand → händer, bok → böcker, fot → fötter). Definite plural -erna. The umlaut subgroup is not a productive rule but a memorisable handful of high-frequency words.
- Plural Class 4: -nA2 — The fourth Swedish plural declension: ett-words ending in a vowel simply add -n (ett äpple → äpplen, ett bi → bin, ett konto → konton). Definite plural -na (äpplena). Unlike the murky -ar/-er split, this class is fully predictable from gender plus the final sound: ett-word + vowel = -n plural, every time.
- Plural Class 5: No EndingA2 — The fifth Swedish plural declension: the zero plural, where the indefinite singular and plural look identical (ett hus → två hus, ett barn → barn). It covers most consonant-final ett-words and the large, predictable family of -are agent nouns (en lärare → lärare). Definite plural -en for ett-words (husen) and -na for the -are nouns (lärarna).