SavingBits

Video

How big is one hour of 1080p video?

2.2–5.4GB

for one hour, from a streaming service's delivery to a camera's recording; 3.6 GB at 1080p, 30 fps (H.264, 8 Mbps)

An hour of 1080p from a streaming app is around 2–3 GB. The same hour from a camera or a screen recorder is usually several times that, because it is encoded for editing, not for delivery.

The arithmetic

  1. 8 Mbps × 3,600 s ÷ 8 = 3.6 GB per hour
  2. Size = bitrate × seconds ÷ 8. The resolution only matters through the bitrate it needs.
One hour at each bitrate
SourceSize
1080p, 30 fps (H.264, 8 Mbps) published3.6 GB
1080p, 60 fps (H.264, 12 Mbps) published5.4 GB
iPhone 1080p, 30 fps (HEVC) estimate3.6 GB
Netflix High, HD published3 GB
YouTube 1080p computed2.25 GB

Try your own numbers in the video file size calculator