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Estimating internet data usage when using our Internet services for various activities can vary depending on your network, equipment, and software used. Please note that usage estimates provided in the table below are a guide only. Activity Data consumption One hour web browsing 10 to 25MB Download a document 2MB One hour of Facebook 20MB Download a music track 4MB Stream 30 minutes of YouTube 175MB Download a non-HD film 700MB to 1GB Download an [...]