Netflix data usage depends on the quality of the video being streamed. For a two-hour movie, streaming in standard definition (SD) will use about 2 GB of data. If you prefer high definition (HD), it will consume approximately 6 GB for the same duration. For those who want the best picture quality and have access to 4K streaming capabilities, a two-hour movie in 4K resolution will consume around 14 GB of data. Keep in mind that these estimates are for streaming only and do not account for other internet activities. Considering your monthly data allowance, you can calculate how many hours you can stream on Netflix without exceeding your limit.