It depends on the type of connection you have to the Internet. Here are some formulas you can use to make a rough estimate.
b = bits (there are eight bits to a byte)
B = bytes (file sizes are normally expressed in bytes)
Kb = kilobits = thousands of bits
Kb/s = kilobits per second = thousands of bits per second
Mb = megabits = millions of bits
Mb/s = megabits per second = millions of bits per second
MB = megabytes = millions of bytes
- 56k dial-up modem — upload and download 3.0 minutes per MB
- DSL/ADSL — upload 2 MB per minute [approximately 260 Kb/s]; download 10 MB per minute [approximately 1,300 Kb/s]
- standard cable (1.5 Mb/s system) — upload 2 MB per minute [approximately 260 Kb/s]; download 10 MB per minute [approximately 1,300 Kb/s]
- high speed cable (3.0 Mb/s system) — upload 4 MB per minute [approximately 512 Kb/s]; download 20 MB per minute [approximately 2,600 Kb/s]
Note: Internet connections can vary greatly. These estimates assume an 85% efficient connection, which is about average. Also, if you have a Free File Transfer Account, we may borrow some of your upload and download time to share with other account holders, particularly if you are a high volume user, which will increase your upload time from our file transfer website or your download time if you are a SendThisFileFileBox user.