What speeds do I need to transfer large files?

You can transfer large files at any speed; it’s more a question of how long that transfer will take. Here are a couple of tables to help you out:

Time to transfer 1GB file

Transfer speed (Mbps)Theoretical time (Seconds)
1.55,333
51,600
10800
20400
50160
10080
25032
50016
1,0008

Data transferred per hour

Transfer speed (Mbps)MegabytesGigabytes
1.56750.675
52,2502.25
104,5004.5
209,0009
5022,50022.5
10045,00045
250112,500112.5
500225,000225
1,000450,000450