This article shows you the step by step guide on how to upload video to YouTube site:
Step 1: Support video requirements. A video file should meet the following requirements so that it can be uploaded to YouTube site.
a. In an acceptable format: WMV, MPEG4, MOV, AVI and MPEG.
b. Video length is shorter 10 minutes.
c. File size is smaller than 1GB.
Note: Regarding the acceptable formats, If your video is not accepted, you can get a video converter (If you are a Mac user, you need a video converter for Mac) to convert it to MPEG4 video with MP3 audio, which may result in the best quality.
Step 2: Sign up a YouTube account or Gmail account, then click the Upload button on any YouTube web page. See the figure below:

Step 3: Type in the information of your video file, including Title, Description, Category and tags. To increase the chances that your video can be easily found, you should put as much information as possible.

Step 4: Set this video to be public or private. Then click the "Upload a video" button. When you see the next window, click the "Browse" button to select the video file you want to upload. Then click the "Upload Video" button to upload it. After the upload is finished, you will see the completion page. See the figure below:

Step 5: Click "My Videos" and you will see the figure below:

Note: Here you can view the information of the uploaded videos. YouTube allows you to edit your videos using the four Edit buttons: "Edit Video Info", "Edit Annotation", "Make a Profile icon" and "Insight".
OK! You have done that! Just enjoy your video own videos on Youtube.