File size from duration and bitrate

Client

Back-of-envelope storage for audio/video given length and kbps.

How to use

Enter durationMinutes|bitrateKbps.

About File size from duration and bitrate

Estimate file size from duration and bitrate—browser media planning. The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.

How to use this page

Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.

10 min × 128 kbps ≈ 9.16 MB (uncompressed estimate)

Nearby workflows on Toolcore

  • Download time calculator — Estimate download duration from file size and bitrate—local network math. when units or numeric output should be checked on a related calculator.
  • Speed converter — m/s, km/h (kph), mph, knots, ft/s—paste one speed, see every column with standard mile and nautical definitions. when units or numeric output should be checked on a related calculator.
  • Reading time calculator — Estimate minutes to read pasted prose from word count and WPM—rough blog-style hint, browser-only. when units or numeric output should be checked on a related calculator.
  • Unit converter (length, temperature, weight) — Length (metric & US customary), temperature (°C, °F, K), and weight (mg to lb)—paste one value, see every column. when units or numeric output should be checked on a related calculator.

Common use cases

  • Podcast hosting size estimates.
  • Streaming buffer planning.

Common mistakes to avoid

  • Codec overhead

    Constant bitrate assumption; VBR files vary.

FAQ

Hours instead?

Convert to minutes first (90 for 1.5 h).

More tools

Related utilities you can open in another tab—mostly client-side.