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File Download tool How long will will my data file transfer take?

Use our download calculator to estimate file download or transfer speeds. We offer this tool to assist in determining which connection speed meets your needs. Actual transfer speeds will be slower than these times due to latency. If the results of your file transfer takes hours, you may want to consider looking at T1 line providers available in your city. We serve all 48 continental states and Hawaii.

Measuring the maximum data throughput rate of a communications link is a typical method of performing a measurement of the download / upload rate to transfer a 'large' file and measure the time taken to do so. The throughput is then calculated by dividing the file size by the time to get the throughput in megabits, kilobits, gigabits, terabits or bits per second. Another factor which effects file transfer speeds is latency.

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Enter File size file size: >
then select Kbits, Mbits etc

Dial-up / Modem
14,400 bps hours minutes seconds
28,800 bps hours minutes seconds
33,600 bps hours minutes seconds
56 Kbps hours minutes seconds
ISDN / DSL
64K ISDN hours minutes seconds
128K ISDN hours minutes seconds
144K ISDN hours minutes seconds
640K DSL hours minutes seconds
T1 - T3, Frac,
Multi / Bonded
Fractional 768K T1 hours minutes seconds
T1/DS1, DSL 1.54 Mb hours minutes seconds
Bonded 3.0Mb 2xT1 hours minutes seconds
Bonded 4xT1 6.1Mb hours minutes seconds
Ethernet / Cable 10Mb hours minutes seconds
Trans-European 34M hours minutes seconds
Ultraband Cable 40M hours minutes seconds
Full T3/DS3 44.7M hours minutes seconds
WiMax Wireless 75M hours minutes seconds
T4/DS4 hours minutes seconds
Fiber Optics
Fibreless Optics/Laser
OC-1 hours minutes seconds
OC-3 hours minutes seconds
OC-9 hours minutes seconds
OC-12 hours minutes seconds
OC-18 hours minutes seconds
OC-24 hours minutes seconds
OC-36 hours minutes seconds
OC-48 hours minutes seconds
OC-192 hours minutes seconds
OC-768 hours minutes seconds
OC-3072 hours minutes seconds
DWDM - 10Tbps hours minutes seconds
Wireless / Satellite
Connections
3G / 4G Wireless hours minutes seconds
Wireless CDPD 9.6K hours minutes seconds
Wireless GSM 19.2K hours minutes seconds
Wireless 2.4M hours minutes seconds
Satellite 24M hours minutes seconds

In fact, there are many overheads in transmission that mean the calculated 'effective' throughput does not reflect the true situation. Normally throughput and latency are opposed goals. To improve latency you typically want to increase how much the computer checks to see if you are trying to interact. This checking overhead slows you down. However there is one very common exception to this rule. Network protocols and programs tend to synchronize both ends regularly. If these synchronizations are slow, then throughput can suffer.

Other Factors

Throughput in IT terms, this is the speed at which a computer or network processes data end to end. It therefore is a good measure of absolute performance, and we frequently will see internet connections rated in terms of how many bits they pass per second (bit/s). However it is a lousy measurement of perceived performance, which is mostly based on how quickly it responds to you. Responsiveness has far less to do with throughput than latency.

Latency is a measure of amount of time between the start of an action and its completion, whereas throughput is the total number of such actions in a given amount of time.

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