Khan Academy does not support this browser.   [close]

To use Khan Academy you need to upgrade to another web browser. Just select one of the options below to start upgrading.
Microsoft Edge Google Chrome

If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Skip to main content
Main content

Global Learning, Global Impact.

Apply to translate

Supporting over 60 languages and counting

<100K1M100M1B+
Minutes on Khan Academy in 2018

Bring Khan Academy to the world

Help us translate our content into the world’s languages.