How to Calculate Audio Bitrate Converter
What is Audio Bitrate Converter?
Converts between audio bitrates (kbps) and estimates file sizes for different formats and durations.
Formula
File size (MB) = bitrate (kbps) × duration (s) / 8000
- MB
- bitrate (kbps) × duration (s) / 8000 — bitrate (kbps) × duration (s) / 8000
Step-by-Step Guide
- 1File size (MB) = bitrate (kbps) × duration (s) / 8000
- 2Higher bitrate = better quality but larger file
- 3Lossless formats have variable bitrate based on content
Worked Examples
Input
320 kbps for 3 min
Result
~1.44 MB
Common Mistakes to Avoid
- ✕Assuming 128 kbps MP3 equals CD quality
- ✕Not accounting for stereo vs mono channel count
Frequently Asked Questions
What bitrate is CD quality?
1411 kbps (WAV/FLAC) or 320 kbps MP3 as a lossy equivalent.
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