Podcast File Size Calculator
Episode File Size
Calculate file size for a podcast episode
Hosting Storage Estimate
Estimate podcast hosting storage needs
Recording Storage
Estimate raw recording storage needs
Formula
File Size (MB) = Bitrate (kbps) × Duration (seconds) / 8 / 1024 | Raw WAV = Sample Rate × Bit Depth/8 × Channels × Duration
Frequently Asked Questions
What bitrate should I use for my podcast?
For speech-only podcasts, 64 kbps mono or 128 kbps stereo MP3 is standard. Music podcasts should use 192-256 kbps. Apple Podcasts recommends 128 kbps stereo or 64 kbps mono.
How big is a 1-hour podcast episode?
At 128 kbps (standard): about 57 MB. At 64 kbps mono: about 29 MB. At 192 kbps: about 86 MB. Most episodes are 30-90 minutes, resulting in 25-100 MB files.
Should I record in mono or stereo?
Record in stereo for multiple speakers or music. Single-speaker shows can use mono to halve file size. Most listeners won't notice the difference for speech on earbuds.
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