File-Transfer Time Calculator

A free calculator to estimate the time a file will take to transfer.

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Error

Result

A file that is would take at least to transfer over

Kilo*1: 1024 1000		Overhead: 0% 5% 10% 20% 30% 40% 50%
Bits Bytes KB (Kilobyte) MB (Megabyte) GB (Gigabyte) TB (TeraByte) PB (PetaByte) EB (ExaByte)	-->-->	Bits/s (bps) Kbit/s (kbps) Mbit/s (mbps) Gbit/s (gbps) Bytes/s (B/s) Kilobytes/s (KB/s) Megabytes/s (MB/s) Gigabytes/s (GB/s)
Calculate

OR: Select speed by interface...

USB

3.0 (5 Gbit/s^*2) 3.1 (10 Gbit/s^*2) 3.2 (20 Gbit/s^*2) 4 (40 Gbit/s^*2)
1.0 (1.536 Mbit/s) 1.1 (12 Mbit/s) 2.0 (480 Mbit/s)

Firewire

100 (98.304 Mbit/s) 200 (196.608 Mbit/s) 400 (393.206 Mbit/s)
800 (786.432 Mbit/s) 3200 (3145.7 Mbit/s)

SATA

I (1.5 Gbit/s) II (3 Gbit/s) III (6 Gbit/s)

NVMe

NVMe (3.5 Gbit/s)

PATA

66 (528 Mbit/s) 100 (800 Mbit/s) 133 (1064 Mbit/s)

SAS

I (2400 Mbit/s) II (4800 Mbit/s)

Wired LAN

ThinNet - (10 Mbit/s) Fast Ethernet - (100 Mbit/s)
Gigabit Ethernet - (1000 Mbit/s) 10 Gb Ethernet - (10 Gbit/s)

Wireless LAN

A - (54 Mbit/s) B - (11 Mbit/s) G - (54 Mbit/s) N - (100 Mbit/s)

Modem

(14.4 Kbit/s) (28.8 Kbit/s) (33.6 Kbit/s) (56 Kbit/s)

Fibre (full duplex)

1GFC (200 MB/s) 2GFC (400 MB/s) 4GFC (800 MB/s)
8GFC (1600 MB/s) 10GFC (2550 MB/s)

Calculate

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This File Transfer Time Calculator is used to determine the approximate time that a file would take to transfer over a particular interface . The speeds are optimistic because the actual inferface will be slowed down by overhead (ex: requests for the information, syncs, ...), more than one transfer at a time, and the interface not performing at the standard speed.

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View the time given as a realistic minimum of the amount of time a file will take to transfer.

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Some Similar Tools:

• http://www.t1shopper.com/tools/calculate/downloadcalculator.php
• http://www.ibeast.com/content/tools/band-calc.asp

^*11024 is most used. The 1000 byte conversion is mainly used by hard drive manufacturers to calculate drive size. There is some real confusion about this so make sure to look up how your specific application calculates size. When in doubt, use 1024.

^*2 USB Speeds can varry with a variety of factors (cable length/other interfaces connected/hubs/...) so you might be better off selecting the slowest interface in your chain. For example, if you have a SATA II drive connected to a USB3.2 interface, the SATA II interface is slower and will determine the maximum speed possible.

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