---
title: "Video Bitrate Calculator — H.264, H.265, AV1"
description: "Calculate optimal bitrate from resolution, framerate, and codec. Presets for H.264, H.265, AV1, plus YouTube and Twitch upload targets."
canonical: "https://aicontentdrop.com/tools/video-bitrate-calculator"
source: "https://aicontentdrop.com/tools/video-bitrate-calculator"
---
Free Creator Tool

# Video Bitrate *Calculator*

Calculate optimal bitrate from resolution, framerate, and codec. Presets for H.264, H.265, AV1, plus YouTube and Twitch upload targets.

Resolution

Framerate (fps)

Duration (seconds)

Codec

Best compatibility. Default for most uploads.

Quality target

Estimated bitrate

4.35 Mbps

Baseline H.264:

4.35 Mbps

· Codec ×

1

· Quality ×

1

File size (MB)

32.66 MB

File size (MiB)

31.15 MiB

ffmpeg command

```
ffmpeg -i input.mp4 -c:v libx264 -b:v 4350k -maxrate 6090k -bufsize 8700k -r 30 -vf scale=1920:1080 -c:a aac -b:a 128k output.mp4
```

#### Platform recommendations

- YouTube
  
  8 Mbps
- TikTok
  
  4–12 Mbps
- Instagram Reels
  
  3.5–5 Mbps
- Twitch live
  
  4.5–6 Mbps

## Frequently asked questions

- **What is video bitrate?**
  
  The amount of data the video uses per second of playback, measured in bits per second (bps). Higher bitrate generally means higher quality.
- **How do I pick the right bitrate?**
  
  Use the calculator: enter resolution, framerate, and codec, and we return YouTube/Twitch-recommended ranges plus a quality slider.
- **YouTube recommended bitrates?**
  
  1080p30: 8 Mbps. 1080p60: 12 Mbps. 4K30: 35-45 Mbps. 4K60: 53-68 Mbps. HDR adds ~25%.
- **Twitch streaming bitrates?**
  
  Twitch caps at 6 Mbps for non-Partners. Use 4500-6000 Kbps for 1080p60, 3500-5000 Kbps for 720p60.
- **H.264 vs H.265 vs AV1?**
  
  H.265 (HEVC) and AV1 deliver the same quality at ~30-50% lower bitrate than H.264, but encoding time and player support differ. AV1 is best for archival, H.264 for compatibility.
- **CBR vs VBR?**
  
  CBR (constant) holds bitrate steady — best for live streaming. VBR (variable) saves bandwidth on simple scenes — best for upload/archive.
- **How does framerate affect bitrate?**
  
  Doubling the framerate (30 → 60) typically requires ~50% more bitrate to maintain quality, since there is more motion per second.
- **Can I export ffmpeg flags?**
  
  Yes — the tool produces a copy-paste ffmpeg command line for your selected codec, bitrate, and container.

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