Audio Duration Calculator
Audio Duration Calculator helps you quickly find the exact length of an audio file so you can plan edits, uploads, and publishing constraints without guessing. You upload an audio file and click Calculate duration to read its duration from media metadata on the backend using FFmpeg’s probe tools. The results are shown as both a readable timecode (minutes/seconds or hours/minutes/seconds for long files) and precise seconds with millisecond-level precision, along with the detected container/format label and file size for context. This is useful when you need to check whether a clip fits a time limit, estimate how much content you recorded, or verify that an export matches the expected length. For users who want quick guidance on what a given length is best suited for, an optional AI Assistant can interpret the duration and suggest practical next steps (such as using it as a short preview or trimming a highlight), while keeping all AI processing on the server.
File Conversion · Audio Converters