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How much a clip weighs

File size from bitrate and duration — and the reverse: how many seconds fit into a file.

Clip duration
Stream bitrate

File size

58.6 MB

In megabytes: 58.6 MB · In gigabytes: 0.06 GB

Total bitrate: 8.19 Mbit/s · 8,192 kbit/s

Duration: 1:00

Reverse calculation

How many seconds fit into a file

At the same video and audio bitrate.

Fits

2:54:45

10,485.8 s

How we calculate

Data tier:Bour measurementVerified: 03 Nov 2026

Formula

size = (video bitrate + audio bitrate) × time ÷ 8; time = size × 8 ÷ (video bitrate + audio bitrate)

Data sources

  • Our ffmpeg 9.0.2 measurement: export ladder CRF 18 (H.264) and CRF 20 (HEVC), synthetic source 1920×1080@25 — verified 03.11.2026
  • Decimal kilobits: 1 kbit/s = 1000 bit/s — the same convention codecs and publishing platforms use

The value comes from our own measurement on a test source — that is a lower bound.

Caveat

The real bitrate depends on how detailed the picture is: it is higher on detailed scenes. Our ffmpeg measurement is a lower bound on a test source.

More in the “How we calculate” reference