How to translate "Buy now" button?

The one way to translate Buy it now button is change your store default language, please follow these steps:

Step

1. From your admin, click to Settings => Languages

2. Change the default language of your store

3. Click Save and you can see the result

Once you've completed the setup, the "Buy it now" button will be translated into your chosen language, ensuring that your site communicates effectively with your target audience in their native language, enhancing the shopping experience.