Streaming Data Usage Report 2026

Key findings

• Resolution is everything. Going from HD to 4K roughly doubles to triples data use; dropping to SD cuts it by about two-thirds.
• 4K is the data hog. At about 7 GB/hour, a few hours of nightly 4K is where households actually start approaching data caps.
• Music is negligible. Even high-quality audio uses a fraction of video — you'd stream music for a full day to match one hour of 4K.
• Newer codecs help. Services using efficient codecs (AV1, HEVC) deliver the same quality at lower data, so figures trend down slightly over time.

Video streaming data usage by quality

Figures are typical ranges; exact usage varies with the title, codec, and how aggressively a service adapts bitrate to your connection.

By service at a glance

What that means for a monthly cap

A common ISP data cap is 1.2 TB (1,200 GB). Here's roughly how many hours that buys if it were spent only on streaming:

So a single person streaming HD is in no danger, but a household running multiple 4K streams every evening can realistically approach a 1.2 TB cap. If you have an unlimited plan, none of this matters — see internet without data caps.

How to use less data streaming

• Lower the playback quality in each app's settings — 1080p instead of 4K roughly halves usage.
• Set a data-saver mode on mobile and metered connections.
• Download titles on Wi-Fi for offline viewing instead of re-streaming.
• Remember that screen size matters: 4K on a phone is largely wasted data.

Methodology

This report combines published per-service bitrate guidance, common codec behavior, and typical adaptive-streaming configurations into planning-level data-per-hour ranges. Actual consumption varies with the specific title, the codec in use, and how each service adapts quality to your connection and device.

These are planning figures, not exact meter readings. Your real usage depends on resolution, codec, device, app settings, and how often quality adapts. To see live consumption, check your router or ISP usage meter.

Frequently Asked Questions

How much data does streaming use per hour?

Roughly 0.7 GB/hour for SD, about 1-3 GB/hour for HD, and around 7 GB/hour for 4K video. Music streaming uses far less — about 50-150 MB/hour depending on quality.

How much data does Netflix use for 4K?

Netflix uses roughly 7 GB per hour for 4K (Ultra HD) content. HD is about 3 GB/hour and SD around 1 GB/hour. YouTube and Disney+ are broadly similar at the same resolutions.

Will streaming use up my data cap?

It can. A 1.2 TB cap allows roughly 170 hours of 4K, 400 hours of HD, or over 1,000 hours of SD per month. Several people streaming 4K daily can approach a cap; HD and SD rarely do.