Yesterday google poped up in french. i wanted english. so i went to change it. Doing this, i had a quick look at which languages were available. I was quite surprised by the number. around 150(including those with uncomplete support). Big languages are all there. Smaller ones are quite many. for example, on the languages of france, you have not only french, but also: breton, basque, corsican, and catalan...
Based on english, they have some funny (but not real language) versions: hacker, "elmer fudd"(all r and l are w)...
But they also have Latin, Esperato, Interlingua, and even klingon.
If you are jalous, and feel your conlang (or tolkien's, for fans) are missing, no problem, they provide some interface to become google translator.
Here is the complete listing they give for their languages:
Abkhazian,Afar,Afrikaans,Albanian,Amharic,Arabic,Armenian,Assamese,Aymara,Azerbaijani,Bashkir,Basque,Belarusian,Bengali,Bhutani,Bihari,Bislama,Borkborkbork,Bosnian,Breton,Bulgarian,Burmese,Cambodian,Catalan,Chinese (Simplified),Chinese (Traditional),Corsican,Croatian,Czech,Danish,Dutch,Elmer Fudd,English (UK),Esperanto,Estonian,Faroese,Fiji,Finnish,French,Frisian,Galician,Georgian,German,Greek,Greenlandic,Guarani,Gujarati,Hacker,Hausa,Hebrew,Hindi,Hungarian,Icelandic,Indonesian,Interlingua,Interlingue,Inuktitut,Inupiak,Irish,Italian,Japanese,Javanese,Kannada,Kashmiri,Kazakh,Kinyarwanda,Kirundi,Klingon,Korean,Kurdish,Kyrgyz,Laothian,Latin,Latvian,Lingala,Lithuanian,Macedonian,Malagasy,Malay,Malayalam,Maltese,Maori,Marathi,Moldavian,Mongolian,Nauru,Nepali,Norwegian (Bokmål),Norwegian (Nynorsk),Occitan,Oriya,Oromo,Pashto,Pushto,Persian,Pig Latin,Polish,Portuguese (Brazil),Portuguese (Portugal),Punjabi,Quechua,Rhaeto-Romance,Romanian,Russian,Samoan,Sangho,Sanskrit,Scots Gaelic,Serbian,Serbo-Croatian,Sesotho,Setswana,Shona,Sindhi,Sinhalese,Siswati,Slovak,Slovenian,Somali,Spanish,Sundanese,Swahili,Swedish,Tagalog,Tajik,Tamil,Tatar,Telugu,Thai,Tibetan,Tigrinya,Tonga,Tsonga,Turkish,Turkmen,Twi,Uighur,Ukrainian,Urdu,Uzbek,Vietnamese,Volapuk,Welsh,Wolof,Xhosa,Yiddish,Yoruba,Zhuang,Zulu