Finnish Translator
Translate Any Text to Finnish
DeepL handles Finnish's 15 grammatical cases and agglutinative suffixes — producing natural Finnish, not the broken output of rule-based translators.
See the difference
Natural-sounding Finnish translations — not word-by-word output.
Translation tips
15 grammatical cases
Finnish has 15 cases — far more than most European languages. 'Talo' (house) becomes: talossa (in), talosta (from), taloon (into), talolla (at), talolta (from at), talolle (to at), and more. Each suffix encodes precise spatial and grammatical relationships.
Vowel harmony is strict
Finnish words must use either front vowels (ä, ö, y) or back vowels (a, o, u) — never mixed. 'Taloissa' (in houses) uses back vowels; 'pöydissä' (on tables) uses front vowels. This extends to suffixes: '-ssa/-ssä', '-lla/-llä'. DeepL follows harmony rules.
Consonant gradation changes root forms
Finnish consonants weaken in certain forms: 'pankki' (bank) → 'pankin' (bank's), 'kauppa' (shop) → 'kaupan' (shop's). The patterns (kk→k, pp→p, tt→t, and subtler ones) are systematic but complex. DeepL applies gradation correctly.
No articles, no grammatical gender
Finnish has no articles (a, the) and no grammatical gender. 'Hän' means both 'he' and 'she'. This simplifies translation INTO Finnish but requires context clues when translating FROM Finnish.
Did you know? Finnish has a word for the day after tomorrow — 'ylihuomenna' — and for two days after tomorrow — 'tuonnempana'. The language is also famous for long compound words like 'lentokonesuihkuturbiinimoottoriapumekaanikkoaliupseerioppilas' (airplane jet turbine engine assistant mechanic non-commissioned officer student).
How to use it
Paste your text above — source language is auto-detected.
Target is pre-set to Finnish. Click Translate.
Copy the result — case endings and vowel harmony are correct.
Frequently asked questions
Does it handle all 15 Finnish cases?
Yes. DeepL correctly applies all case suffixes including the less common ones: essive (-na/-nä), translative (-ksi), abessive (-tta/-ttä), instructive (-n), and comitative (-ne-). Vowel harmony is maintained across all suffixes.
How does it handle Finnish vowel harmony?
Correctly. DeepL follows the front/back vowel harmony rule throughout, including in compound words where harmony follows the last component.
Is the output formal or colloquial Finnish?
Standard written Finnish (kirjakieli). The output avoids spoken Finnish forms (puhekieli) like 'mä' for 'minä' or 'sä' for 'sinä'.
Can it translate from Estonian to Finnish?
Yes. Estonian and Finnish are related Uralic languages. DeepL handles the translation well, correctly mapping vocabulary differences — Estonian 'tuba' → Finnish 'huone' (room).
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