# Bitrate

Canonical URL: https://getvidiyo.app/glossary/bitrate
Last updated: 2026-10-08

> Definition: Video bitrate is the amount of data used to store each second of video, usually measured in megabits per second (Mbps). Higher bitrates keep more detail but make larger files.

Bitrate is the budget a video gets for detail. Every second of footage is compressed into a certain number of bits; more bits mean the encoder can keep fine textures, gradients and fast motion intact. Too few, and you see blocky shadows, smeared hair and banding in skies. Bitrate, resolution, frame rate and codec together decide how a video looks and how big the file is.

## What bitrate does YouTube recommend?

YouTube publishes recommended upload bitrates for H.264 video ([source](https://support.google.com/youtube/answer/1722171?hl=en)):

| Resolution | Standard frame rate (24 to 30 fps) | High frame rate (48 to 60 fps) |
|---|---|---|
| 1080p | 8 Mbps | 12 Mbps |
| 4K (2160p) | 35 to 45 Mbps | 53 to 68 Mbps |

For stereo audio, it recommends 384 kbps AAC-LC or Opus. These are SDR figures; HDR uploads use higher rates. Platforms re-encode everything you upload, so a clean, slightly generous master survives the second compression better than a starved one.

## Constant vs variable bitrate: what's the difference?

Constant bitrate (CBR) spends the same amount of data every second; variable bitrate (VBR) spends more on complex scenes and less on simple ones. VBR usually gives better quality for the same file size, so it's the common choice for uploads. CBR matters mainly for live streaming, where the network needs a predictable rate.

## How does bitrate affect short-form and product videos?

Bitrate matters most where footage is detailed or moving. A talking head against a plain wall compresses easily. A screen recording with small text, a scrolling page or a gradient background is harder: low bitrates blur text and show banding. For product demos, a generous bitrate keeps the interface readable after the platform re-encodes it.

## What's an example of bitrate in practice?

A 45-second Reel exported at 12 Mbps is roughly 12 × 45 ÷ 8 ≈ 68 megabytes of video. At 4 Mbps it would be about 23 megabytes, but fine text in a screen recording would start to blur. Since the platform re-encodes it anyway, the 12 Mbps file gives its encoder more to work with.

## What bitrate does Vidiyo export at?

Vidiyo exports a 1080p, 30 fps H.264 MP4 with AAC audio at a 12 Mbps target video bitrate, which is above YouTube's 8 Mbps recommendation for 1080p at standard frame rates. There's no bitrate setting to change: export is one format, tuned for social platforms. Chat previews of your edit render smaller and lighter, but the exported file is always the full-quality version.

## Frequently asked questions

### What bitrate should I use for 1080p YouTube uploads?

YouTube recommends about 8 Mbps for 1080p SDR at standard frame rates (24 to 30 fps) and 12 Mbps at high frame rates (48 to 60 fps). Uploading a bit higher is fine, since YouTube re-encodes everything.

### Does a higher bitrate always mean better quality?

Only up to a point. Once the bitrate is high enough for the content, extra data adds file size without visible improvement. Complex, fast-moving footage needs more bitrate than a static talking head.

### How do I calculate a video's file size from its bitrate?

Multiply the total bitrate by the duration and divide by 8 to get bytes. A 60-second video at 12 Mbps is about 12 × 60 ÷ 8 = 90 megabytes, plus audio.

## Related terms

- [H.264 vs HEVC](https://getvidiyo.app/glossary/h264-vs-hevc)
- [Frame rate](https://getvidiyo.app/glossary/frame-rate)
- [Aspect ratio](https://getvidiyo.app/glossary/aspect-ratio)

## Where Vidiyo does this

- [The best video editing setup for Mac](https://getvidiyo.app/blog/best-video-editing-setup-for-mac)
- [How to schedule videos with Buffer](https://getvidiyo.app/blog/schedule-videos-with-buffer)

## Sources

- [Recommended upload encoding settings (YouTube Help)](https://support.google.com/youtube/answer/1722171?hl=en) (accessed 2026-10-08)