Originally posted on WordPress.com News:
We’ve recently noticed that a fair number of you have been bringing your tumblelogs over from Tumblr to WordPress.com using one of the variety of Tumblr to WXR conversion tools which exist on the web. We thought you would appreciate an easier way to import your content, so we bring you 3 easy steps to import your content.
Authenticate with Tumblr
To bring your tumblelog’s content to WordPress.com, head to Tools → Import in your WordPress.com dashboard and look for the Tumblr importer. If you don’t already have an account here on WordPress.com then head over and sign up first.