What bitrate do I need for good quality?

For 1080p: 10-20 Mbps for streaming, 20-50 Mbps for broadcast. For 4K: 25-50 Mbps for streaming, 50-150 Mbps for broadcast, 200+ Mbps for mastering. H.265 achieves similar quality at roughly half the bitrate of H.264.

How does bitrate relate to quality?

Higher bitrate = more data per second = better quality. However, there are diminishing returns. Beyond a certain bitrate (depends on codec and content), quality improvements become imperceptible. Fast motion and fine detail need higher bitrates than slow, simple scenes.

CBR (constant bitrate) maintains the same bitrate throughout. VBR (variable bitrate) adjusts based on scene complexity — more data for complex scenes, less for simple ones. VBR gives better quality per file size but less predictable file sizes.

What bitrate does YouTube recommend?

For 4K SDR, YouTube recommends 35-45 Mbps at 24-30fps and 53-68 Mbps at 48-60fps. For 4K HDR, aim higher: 44-56 Mbps at 24-30fps and 66-85 Mbps at 48-60fps. For 1080p SDR, use 8 Mbps at 24-30fps and 12 Mbps at 48-60fps. Upload at the highest quality possible — YouTube will re-encode to its own formats.

PhotoCalcs

Bitrate Calculator — Required Bitrate

Calculate the bitrate needed for target quality and file size.

File Size

Total size of the recorded or exported clip, in gigabytes

Duration (minutes)

Whole minutes of clip length — add any extra seconds in the next field

Duration (seconds)

Seconds on top of the minutes above (0-59)

How We Calculate This

Bitrate Formula

Bitrate (Mbps) = file size (MB) × 8 ÷ duration (seconds)

This gives the average bitrate. Variable bitrate (VBR) encoding will fluctuate around this average based on scene complexity.

File size is read in binary units (1 GB = 1024 MB = 1024 × 1024 KB), matching how most operating systems report disk usage, so the result is megabits per second on that binary basis. True decimal Mbps (1 Mbit = 1,000,000 bits) would be about 4.9% higher than the figure shown.

Frequently Asked Questions

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Last updated: February 2026

All calculations are estimates based on standard optical and photographic formulas. Results may vary with specific equipment.