CheckoutWC picks up the language that you have set in WP Admin > Settings > General > Site Language.
It also picks up the locale when translation plugins such as WPML override it.
CheckoutWC is currently translated into the following languages:
| Arabic | ar |
| Bengali | bn_BD |
| Bulgarian | bg_BG |
| Chinese (China) | zh_CN |
| Chinese (Taiwan) | zh_TW |
| Croatian | hr |
| Czech | cs_CZ |
| Danish | da_DK |
| Dutch | nl_NL |
| English (South Africa) | ez_ZA |
| Estonian | et |
| German | de_DE |
| Greek | el |
| Spanish (Spain) | es_ES |
| Spanish (Mexico) | ex_MX |
| Finnish | fi |
| French | fr_FR |
| Hebrew | he_IL |
| Hindi | hi_IN |
| Hungarian | hu_HU |
| Italian | it_IT |
| Japanese | ja |
| Korean | ko_KR |
| Lithuanian | lt_LT |
| Norwegian (Bokmål) | nb_NO |
| Polish | pl_PL |
| Portuguese (Angola) | pt_AO |
| Portuguese (Brazil) | pt_BR |
| Portuguese (Portugal) | pt_PT |
| Portuguese (Cape Verde) | pt_CV |
| Russian | ru_RU |
| Romanian | ro_RO |
| Slovak | sk_SK |
| Slovenian | sl_SI |
| Swedish | sv_SE |
| Turkish | tr_TR |
If your language is not included, let us know and we’ll add it.