Audio Size Calculator

What Audio Size Calculator does

How to use the Electronic Music Mall Audio Size Calculator

1. 1

   Enter the sample rate in Hz (e.g., 44100, 48000, 88200, 96000)

2. 2

   Select the bit depth (16-bit, 24-bit, 32-bit float)

3. 3

   Choose the number of channels (Mono or Stereo)

4. 4

   Input the desired duration in seconds, then click Estimate File Size to see the result in megabytes and bytes

Audio Size Calculator FAQ

How do I estimate an audio file's size using this calculator?

For uncompressed audio, multiply sample rate × bit depth × channels × seconds and divide by eight to get bytes; for compressed files, multiply the bitrate in kbps by 1,000, then by the seconds, and divide by eight. The calculator reports the result in both megabytes and bytes.

What is the typical size difference between a WAV and MP3 file?

A three-minute stereo WAV at 44.1 kHz / 16-bit is around 30 MB, while the same track as a 320 kbps MP3 is closer to 7 MB and at 128 kbps roughly 3 MB. Compression trades some fidelity for dramatically smaller files.

Why doesn't my exported file exactly match the calculator's estimate?

The calculator estimates the raw audio payload. Real files add a little for container structure, headers, and metadata like cover art and tags. Variable-bitrate encoders also adapt the rate to the material, so the final size lands near but not exactly on the estimate.

Can I use this calculator for compressed audio formats like MP3 or AAC?

Yes. The tool handles both uncompressed PCM settings and compressed formats. For compressed files, you can simply input the bitrate and duration instead of sample rate, bit depth, and channels.