Podcast File Size & Bandwidth Calculator
Estimate episode file size from MP3/AAC bitrate and length — and the monthly bandwidth your host serves at your download numbers.
At the podcast-standard 128 kbps, audio costs almost exactly 1 MB per minute — a 45-minute episode is ~42 MB, and 2,000 downloads means ~82 GB served. Mono speech at 64–96 kbps AAC halves that with no audible loss for voice, which matters once hosting tiers meter bandwidth.
Rule / Formula
Estimate episode file size from MP3/AAC bitrate and length — and the monthly bandwidth your host serves at your download numbers.
About Podcast File Size & Bandwidth Calculator
Estimate episode file size from MP3/AAC bitrate and length — and the monthly bandwidth your host serves at your download numbers. At the podcast-standard 128 kbps, audio costs almost exactly 1 MB per minute — a 45-minute episode is ~42 MB, and 2,000 downloads means ~82 GB served. Mono speech at 64–96 kbps AAC halves that with no audible loss for voice, which matters once hosting tiers meter bandwidth.
How to use Podcast File Size & Bandwidth Calculator
- 1Enter your values into the fields in Podcast File Size & Bandwidth Calculator.
- 2The result and any pass/fail verdict update instantly as you type — no button to press.
- 3Check the substituted formula and worked example to see exactly how the result was derived.
- 4Copy or note the result for your spec, delivery or planning.
Why use Podcast File Size & Bandwidth Calculator?
- ✓Runs entirely in your browser with instant, private results — no data leaves your device.
- ✓Built on a published reference: Apple Podcasts delivery guidance (encode settings).
- ✓Shows the governing formula and a worked example, so you can trust and check every result.
- ✓100% free with no sign-up, no watermark and no usage limits.
- ✓Works on any device — desktop, tablet or phone — and keeps working offline once loaded.
Frequently asked questions
What does Podcast File Size & Bandwidth Calculator do?+
Estimate episode file size from MP3/AAC bitrate and length — and the monthly bandwidth your host serves at your download numbers. At the podcast-standard 128 kbps, audio costs almost exactly 1 MB per minute — a 45-minute episode is ~42 MB, and 2,000 downloads means ~82 GB served.
Is my data private?+
Yes. Podcast File Size & Bandwidth Calculator runs entirely in your browser — your inputs are never uploaded, stored or logged.
What standard or source is Podcast File Size & Bandwidth Calculator based on?+
It follows Apple Podcasts delivery guidance (encode settings). Always confirm against the current official document, as specifications and rates can change.
What formula does it use?+
Podcast File Size & Bandwidth Calculator uses: MB = bitrate(kbps) × seconds ÷ 8 ÷ 1024² ; bandwidth = size × downloads. The tool shows this formula with your own numbers substituted so you can verify the result.
Is Podcast File Size & Bandwidth Calculator free to use?+
Yes — it is completely free with no account, no sign-up and no usage limits. There is no watermark and no paywall.
Embed Podcast File Size & Bandwidth Calculator on your website
Want Podcast File Size & Bandwidth Calculatoron your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.
<iframe src="https://tooljolt.com/tools/podcast-file-size-calculator" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="Podcast File Size & Bandwidth Calculator — ToolJolt" loading="lazy"></iframe>Related Broadcast tools
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