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Bandwidth Calculator, Bandwidth Converter
Conversion table for throughput speeds
Enter desired value in a field and hit "Calculate"
SI Values*
BI Values*
bits (b):
Bytes (B):
kilobits (kb):
Kilobytes (KB):
megabits (mb):
Megabytes (MB):
gigabits (gb):
Gigabytes (GB):
* SI values are calculated using the Internation System of Units
BI values are calculated using Binary Units.
Binary units are prefered by operating systems
File Size Bandwidth Calculator
Determine how long it will take to transfer a file at each connection speed
File Size
Type of Connection
bits per second
hours : minutes : seconds
14.4 kbps
14,400 bps
28.8 kbps
28,800 bps
33.6 kbps
33,600 bps
56 kbps
56,000 bps
64K ISDN
64,000 bps
128K ISDN
128,000 bps
640K-DSL
640,000 bps
1.54M T1/1.5-DSL
1.5 Mbps
T3/DS3
45 Mbps
OC3
(3 DS-3, 84 DS-1, 2016 DS-0)
156 Mbps
OC12
(12 DS-3, 336 DS-1, 8064 DS-0)
622Mbps
OC48
(48 DS-3, 1008 DS-1, 24192 DS-0)
2488 Mbps