Audio File SizeMegabytes to Seconds At 48khz 24bit 5 1

MB to seconds for 48kHz / 24-bit 5.1 PCM Audio

Methodology·How We Verify

Snapshot

At 48kHz / 24-bit 5.1 PCM, 100 MB stores about 115.7 seconds of audio.

Reference basis: This result uses the fixed 48khz / 24-bit 5.1 pcm audio PCM profile to turn storage budget back into recording time from 864,000 bytes/s.
Example: For 10 MB, the 48kHz / 24-bit 5.1 PCM Audio PCM estimate gives about 11.6 seconds of recording time.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

115.7 seconds

Switch

API and AI agent access

MB to seconds for 48kHz / 24-bit 5.1 PCM Audio. profile: 48khz-24bit-5-1.

Machine-readable identifiers

Conversion family: audio-file-size
Source unit: megabyte
Target unit: second
Audio profile: 48khz-24bit-5-1

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "audio-file-size",
  "value": 100,
  "from": "megabyte",
  "to": "second",
  "parameters": {
    "profile": "48khz-24bit-5-1"
  }
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "audio-file-size",
    "value": 100,
    "from": "megabyte",
    "to": "second",
    "result": {
      "raw": 115.74074074074075,
      "display": "115.7"
    },
    "canonicalPath": "/audio-file-size/megabytes-to-seconds-at-48khz-24bit-5-1/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

48kHz / 24-bit 5.1 streams 864000 bytes/second (0.864 MB/s). seconds = MB / 0.864. With input 1 MB, result is 1.15740740741 s.

Method & PCM Profile

Method basis: fixed PCM byte-rate estimate inverted to recover recording time from storage size at 0.864 MB/s.
Profile reference: 48kHz / 24-bit 5.1 PCM Audio (864,000 bytes/s; 0.864 MB/s PCM basis).
Consistency rule: snapshot, calculator, FAQ, and common-value rows all use the same fixed PCM profile and byte-rate estimate for this route.

Common Conversion Values

File size (MB)	Duration (seconds)
10	11.6
25	28.9
50	57.9
100	115.7
250	289.4
500	578.7

Questions & answers

Frequently Asked Questions

Which PCM settings are fixed for mb to seconds?

MB to seconds uses 48000 Hz, 24-bit depth, and 6 channels for this profile.

How is the 51.84 MB per minute factor calculated for 48kHz / 24-bit 5.1?

Bytes per second = 48000 × (24 / 8) × 6 = 864000 bytes/s. Using decimal MB (1 MB = 1,000,000 bytes), that is 0.864 MB/s or 51.84 MB/min.

How do I reverse MB to s for 48kHz / 24-bit 5.1?

Use the opposite route for 48kHz / 24-bit 5.1 to convert duration (seconds) back to file size (mb) with the same PCM assumptions.