Units Conversion Chart

If you find it more convenient to think of bandwidth in terms of transfer time for files of various sizes, which are expressed on bytes rather than bits, the following chart may be helpful. 

GigaBytes/month (GB/mo)

MegaBytes/month (MB/mo)

Megabits/sec (Mbps)

Kilobits/sec (Kbps)

Telco Standard

150

150,000

0.5

463

 

166

166,000

0.5

512

512K

250

250,000

0.8

772

 

500.3

500,300

1.5

1,544

T-1

1,000

1,000,000

3.1

3,086

 

5,000

5,000,000

15.4

15,432

 

10,000

10,000,000

30.9

30,864

 

14,495

14,494,500

44.7

44,736

T-3

15,000

15,000,000

46.3

46,296

 

16,796

16,796,000

51.8

51,840

OC-1

20,000

20,000,000

61.7

61,728

 

25,000

25,000,000

77.2

77,160

 

30,000

30,000,000

92.6

92,593

 

40,000

40,000,000

123.5

123,457

 

50,389

50,388,500

155.5

155,520

OC-3

75,000

75,000,000

231.5

231,481

 

100,000

100,000,000

308.6

308,642