1. Estimate File Size
Total duration of the video.
H
M
S
CBR: Constant Bitrate. Good for streaming, predictable size.
VBR: Variable Bitrate. More efficient, size varies slightly.
CRF: Constant Quality. Most efficient, size is unpredictable.
VBR: Variable Bitrate. More efficient, size varies slightly.
CRF: Constant Quality. Most efficient, size is unpredictable.
Affects VBR and CRF calculations.
Static: Slideshows, presentations.
Normal: Vlogs, movies.
High: Sports, action, video games.
Static: Slideshows, presentations.
Normal: Vlogs, movies.
High: Sports, action, video games.
Target kilobits per second for the video. Higher = better quality, larger file.
Constant Rate Factor. A quality target. Lower = better quality, larger file. 18-28 is a common range.
Resolution of the video. Required for CRF estimation.
Frames per second. Higher FPS requires a higher bitrate for the same CRF value.
Slower speeds are more efficient (smaller file for same CRF) but take longer to encode.
Bitrate for the audio track. 128 is good for speech, 192-320 is good for music.
Estimated File Size
0.00 MB
2. Get Bitrate Recommendations
Bit Depth: 8-bit (standard) or 10-bit (HDR, less banding).
Chroma: 4:2:0 (standard) or 4:4:4 (full color, larger file).
Chroma: 4:2:0 (standard) or 4:4:4 (full color, larger file).
Video compression format.
H.264: Most compatible.
HEVC/AV1: More efficient (smaller files), newer.
H.264: Most compatible.
HEVC/AV1: More efficient (smaller files), newer.
The pixel dimensions of the video (e.g., 1080p = 1920×1080).
Frames Per Second. 24/30 is standard, 60 is for high motion.
Recommended Video Bitrate Range:
3. Calculate Bitrate from File Size
Input video length and target size to find the required video bitrate.
Total duration of the video.
H
M
S
The final file size you want to achieve (e.g., 25 for Discord).
The bitrate you plan to use for audio. This will be subtracted from the total to find the video bitrate.
Required Video Bitrate: