Network Speed Calculator

Free online Network Speed Calculator. No sign-up needed, and it runs in your browser.

Processed on your device

Work out how long a download or upload takes, what speed you need, or how much data moves in a given time.

Mbps ↔ MB/s

Internet speeds are in megabits (Mb). Files are in megabytes (MB). 1 byte = 8 bits, so a 100 Mbps line downloads about 12.5 MB per second at best.

How to use

  1. Add your text or file.
  2. Adjust the options if needed.
  3. Copy or download the result.