basic

USB File Transfer Time from File Size and Speed Calculator

How long to copy a file at USB 2.0, 3.0, or custom speed.

Estimates transfer time = file size (bits) / transfer speed (bps). Reference speeds: USB 2.0 = 480 Mbit/s, USB 3.0 = 5 Gbit/s, USB 3.1 = 10 Gbit/s.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

GB
Mbit/s

Results

Enter values and click Calculate to see results.
Was this helpful?

How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Time = file_size_bits / speed_bps

In depth

Estimates transfer time = file size (bits) / transfer speed (bps). Reference speeds: USB 2.0 = 480 Mbit/s, USB 3.0 = 5 Gbit/s, USB 3.1 = 10 Gbit/s.