샘플레이트, 비트 심도, 채널 수, 재생 시간을 이용해 MB / GB 단위 오디오 파일 크기를 추정하세요. WAV, AIFF, FLAC 및 손실 압축 포맷을 비교합니다.
| 포맷 | 압축 | 파일 크기 | 비트레이트 (kbps) |
|---|
비압축 PCM 용량 = 샘플레이트 × 비트 심도 × 채널 수 × 재생 시간 / 8 바이트. FLAC은 평균적으로 PCM의 약 55% 수준입니다(소스에 따라 다름). MP3 320과 AAC 256은 고정 비트레이트 기준 추정치입니다.
비트레이트 = 샘플레이트 × 비트 심도 × 채널 수 (초당 비트 단위).
Uncompressed audio size is fully determined: sample rate × bit depth × channels × duration ÷ 8 gives bytes, and sample rate × bit depth × channels ÷ 1000 gives the bitrate in kbps. The defaults of 48 kHz, 24-bit, stereo and 3:30 therefore produce 2304 kbps and 57.7 MB. Duration is parsed flexibly, accepting mm:ss, h:mm:ss or a plain number of seconds. The comparison table then estimates the same recording as FLAC, ALAC, MP3 320, AAC 256 and Opus 128.
All four inputs multiply together, so each one doubles or halves the file in a straight line. Sample rate and channels move the number fastest: going from the 48 kHz, 24-bit stereo default up to 192 kHz, 32-bit float and 7.1 surround makes the file roughly twenty-one times larger. Choose 44.1 kHz for CD-targeted music, 48 kHz for anything paired with video, and 24-bit over 16-bit for recording headroom rather than for any audible resolution.
The lossless rows are blunt averages — FLAC is assumed to land at 55 % of PCM and ALAC at 60 % — when real compression ranges from about a third on sparse acoustic material to nearly the full size on a loud, dense master. The lossy rows are pure bitrate arithmetic and ignore container overhead and variable-rate encoding. The PCM figure also excludes headers and embedded metadata, and it will not warn you that a classic WAV file cannot exceed 4 GB.
Around 30.3 MB, at a bitrate of 1411 kbps. That is the CD standard, and it works out at roughly 10 MB per minute of stereo audio. Enter 3:00 in the duration field to check it, or 180 as a plain number of seconds.
Exactly, at the same sample rate and channel count, since size is directly proportional to bit depth. Against 24-bit it is a third larger. The benefit of 32-bit float is recording headroom that survives clipping, not extra audible detail.
This calculator assumes 55 % of the PCM size, so roughly 45 % saved, with ALAC slightly behind at 60 %. Real results depend entirely on the material: quiet, sparse recordings compress much further, while heavily limited masters may barely shrink at all.
2304 kbps, from 48000 × 24 × 2 divided by 1000. That is over seven times the 320 kbps of a maximum-quality MP3, which is a useful reminder of how much data lossy formats discard to reach their target size.
Three formats are accepted. Use mm:ss for a song, such as 3:30, use h:mm:ss for a long recording, or type a plain number of seconds. The result line echoes the duration it parsed in seconds so you can confirm it read you correctly.
BPM to Milliseconds Delay Calculator
Convert BPM to milliseconds, Hz and seconds for every note value — 1/1 down to 1/64 triplets and dotted notes.
Musical Note Frequency Calculator (Hz)
Convert any note to frequency in Hz across all octaves, with custom A4 tuning and cents detuning.
Loop Length Calculator (Bars to Seconds)
Convert bars or beats to seconds or samples at any BPM and time signature for perfect loops.
Sidechain Compression Timing Calculator
Calculate sidechain attack and release times in ms synced to BPM and note divisions for pumping mixes.
Podcast Episode Length Optimiser
Recommended podcast episode length by topic and audience plus file size estimates.
