Audio file size and limit calculator
Estimate export size from common MP3, AAC, and WAV presets, compare it with a size limit, and inspect a local file without uploading it.
Choose a format preset, duration, and optional size limit; the tool estimates file size, shows whether it fits, and calculates the maximum duration at that setting.
Result
Choose a real export preset
Select a common MP3, AAC, CD-quality WAV, or 48 kHz 24-bit WAV preset and enter the duration. You can also choose an existing local audio file to copy its real duration and display its actual file size beside the theoretical estimate.
Plan around a hard limit
Enter the platform or transfer limit in megabytes to see the remaining space or excess and the maximum duration that fits at the chosen setting. Container metadata, artwork, and variable bitrate can still change the final export, so inspect the produced file before upload.