Stream optimizer & bitrate calculator
Get recommended packages under your platform cap and upload speed — including 936p when 1080p60 would look soft. Paste into OBS, save profiles, calculate file size.
Stream optimizer
Recommended setup for your limits
Platform cap + upload + content motion → three packages. Apply one to the calculator and copy OBS settings.
- · Twitch ingest cap ≈ 6,000 Kbps video.
- · Using ≤70% of 20 Mbps upload for total stream bitrate.
Sharp under cap: 1080p @ 30fps · 4,500 Kbps
- · Targets highest pixel quality under 6000 Kbps cap.
- · 1080p60 fits your cap and upload with acceptable quality density.
Settings
Live · no signupAdvanced optionsH.264 (AVC) · Medium · 128 kbps audio
Results
1920×1080 @ 60fpsVideo Bitrate Range
Use these settings in OBS
OBS → Settings → Output → Streaming · one-click copy all below
Codec Comparison
| Codec | Bitrate | File Size | vs H.264 |
|---|---|---|---|
| H.264 (AVC)active | 12.13 Mbps | 5.08 GB | 100% |
| H.265 (HEVC) | 7.33 Mbps | 3.07 GB | 60% |
| VP9 | 7.33 Mbps | 3.07 GB | 60% |
| AV1 | 6.13 Mbps | 2.57 GB | 51% |
| ProRes 422 | 42.13 Mbps | 17.66 GB | 347% |
| ProRes 4444 | 60.13 Mbps | 25.20 GB | 496% |
- 100% free, no signup
- Optimizer + save profiles
- Twitch · YouTube · Kick · OBS
What do you need next?
How the calculator works
We combine resolution, frame rate, codec efficiency, audio bitrate, and duration into file size and bitrate estimates you can paste into OBS. Use it to plan storage, stay under platform caps, and check whether your upload speed has enough headroom.
- Resolutions: 720p, 1080p, 1440p, 4K, 8K
- Codecs: H.264, H.265, VP9, AV1, ProRes 422 / 4444
- Frame rates: 24, 30, 60, 120 fps
Popular bitrate guides
Frequently asked questions
How much storage does 1 hour of 4K video take?
A 1-hour 4K video at 30fps using H.264 takes about 15 GB at a 35 Mbps bitrate. HEVC (H.265) cuts that to around 9 GB, roughly 40% smaller. Higher bitrates (50+ Mbps for pro-grade footage) scale the size up proportionally.
What bitrate do I need for 1080p streaming?
For 1080p at 30fps, a bitrate of 4,500-6,000 Kbps (H.264) is recommended. At 60fps, aim for 6,000-9,000 Kbps.
Is HEVC better than H.264 for streaming?
HEVC (H.265) offers ~40% better compression than H.264 at similar quality, meaning smaller files and lower bandwidth. However, encoding is slower and some older devices lack hardware decoding support.
Calculate by resolution & frame rate
| Resolution | 24 fps | 30 fps | 60 fps | 120 fps |
|---|---|---|---|---|
| 720p (HD) | 720p/24fps | 720p/30fps | 720p/60fps | 720p/120fps |
| 900p (1600×900) | 900p/24fps | 900p/30fps | 900p/60fps | 900p/120fps |
| 936p (Twitch sweet spot) | 936p/24fps | 936p/30fps | 936p/60fps | 936p/120fps |
| 1080p (Full HD) | 1080p/24fps | 1080p/30fps | 1080p/60fps | 1080p/120fps |
| 1440p (2K) | 1440p/24fps | 1440p/30fps | 1440p/60fps | 1440p/120fps |
| 4K (2160p) | 4k/24fps | 4k/30fps | 4k/60fps | 4k/120fps |
| 8K (4320p) | 8k/24fps | 8k/30fps | 8k/60fps | 8k/120fps |
Platform guides
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