Data Transfer Time Calculator

Estimate how long a data transfer takes at a stated ideal speed.

About the Data Transfer Time Calculator

This tool estimates an ideal duration for moving a known amount of data at a constant rate.

How to use it

  1. Enter the amount of data.
  2. Enter a transfer speed and select whether it is in bits or bytes per second.
  3. Calculate to see seconds, minutes and hours.

How it works

Duration equals data bytes divided by bytes per second. The calculator accounts for the eight-bit difference between Mbps and MB/s.

Example

At an ideal 100 Mbps, transferring 1 decimal GB takes about 80 seconds.

Notes

Actual transfers usually take longer because throughput varies and protocols add overhead.