This calculator will help you understand how long it will take to transfer a file to/from the Lightpress FTP server. You should figure in 50% overhead, and use a FTP client in order to pick up where the transfer left off in the event an interruption in the connection occurs.   Transfer times are heavily affected by others using the network and such being the case is not the recommended manner to deliver files for time sensitive projects.


File Size:
Overhead: %

Speed Time
9.6 Kbps
14.4 Kbps
28.8 Kbps
33.6 Kbps
56 Kbps
64 Kbps (ISDN)
128 Kbps (ISDN-2)
256 Kbps
512 Kbps
1.024 Mbps
1.544 Mbps (DS1, T1)
2.048 Mbps (E1, ISDN-32)
10 Mbps (10Base-T)
25.6 Mbps (ATM25)
34 Mbps (E3)
45 Mbps (DS3, T3)
51 Mbps (OC1)
100 Mbps (100Base-T)
155 Mbps (OC3)
622 Mbps (OC12)
1 Gbps (1000Base-T)
2.4 Gbps (OC48)
10 Gbps (OC192)

KByte = Kilobyte
MByte = Megabyte
GByte = Gigabyte
Kbps = Kilobit per second
Mbps = Megabit per second
Gbps = Gigabit per second