WordPress Multilanguage Site Widget
Automatic machine translations : Google language translator
The Google language translator is a WordPress Multilanguage Site Widget for automatic machine-based translations. It is available free of charge. The tool can be used by using a short code on your page.
Advantages: It is the cheapest option. You need to do expensive translation tasks or hire a translator.
Disadvantages: The translations do not always make sense. Search engines can mark the content as spam, that prohibits the search engines from the beginning to index your pages.
Conclusion: Despite the disadvantages, it is the best option for automatic translations.