What Bitrate Should You Use for YouTube? (1080p, 1440p, 4K)

Published 2026-07-17 · FrameMath Guides

Every week, someone uploads a 100 GB “maximum quality” master to YouTube and wonders why it looks the same as their friend’s 8 GB upload. Here’s how YouTube bitrate actually works, and the numbers to use.

The key fact: YouTube re-encodes everything

Whatever you upload, YouTube throws away your encode and makes its own versions — multiple resolutions, in multiple codecs (H.264, VP9, AV1). Viewers never see your file. Your upload is just the source for YouTube’s encoder.

This changes the goal. You’re not choosing a bitrate for viewers; you’re choosing one that gives YouTube’s encoder clean source material. Too low and you feed it compression artifacts, which it then re-compresses (artifacts on artifacts). Beyond a certain point, higher bitrates add upload time and nothing else.

YouTube’s recommended bitrates (H.264, SDR)

For HDR, add roughly 25% to each figure. These are YouTube’s own published recommendations for uploads, and they’re sensible: high enough that YouTube’s re-encode has clean source, low enough that uploads don’t take all night.

Is it ever worth going higher?

Modestly, yes — in two cases:

1. Fast, complex motion. Gameplay, confetti, water, crowds. Noise-like detail is the hardest thing to encode; going 1.5–2× the recommendation helps the re-encode.
2. The 4K trick for 1080p content. YouTube gives higher-quality codec treatment (VP9/AV1) to higher-resolution uploads sooner. Upscaling a great 1080p master to 4K before upload often yields visibly better streaming quality — at the cost of much larger files and longer processing.

Uploading a 200 Mbps ProRes file, on the other hand, buys you almost nothing over a clean 16 Mbps H.264 — the re-encode is the bottleneck, not your source.

Don’t forget audio

Use AAC at 384 kbps for stereo (YouTube’s recommendation) or at minimum 128 kbps. Audio is a tiny fraction of the file — never starve it.

How big will the file be?

File size is simply bitrate × duration ÷ 8. A 10-minute 4K30 video at 40 Mbps is about 3 GB; the same video at 1080p30 / 8 Mbps is around 600 MB. To get the exact figure for your settings — or to work backwards from an upload cap to the bitrate you can afford — use our bitrate & file size calculator, which has these YouTube presets built in.

The checklist

• 1080p30: 8 Mbps · 1080p60: 12 Mbps · 4K30: 40 Mbps · 4K60: 60 Mbps
• H.264 High profile, MP4/MOV container, AAC 384 kbps audio
• Fast motion content: go up to ~1.5× these numbers
• Never upload below ~6 Mbps at 1080p — you’re feeding the re-encoder garbage