This is a simple table to show the comparison of "bits" vs "bytes". Most ISP advertise bandwidth in "kbps" (kilo bits per second) while most applications show bandwidth in "kb/s" (kilo bytes per second). So when you pay for 512 kbps you know why your downloads never go faster than about 60 kb/s now you know why.

Giga BIT Mega BIT Kilo BIT Kilo BYTE Mega BYTE
8 1
56 kbps (dial up) 56 7
256 kbps 256 32
512 kbps 0.5 512 64
768 kbps 768 96
800 kbps 800 100
1 Mbit 1 1024 128
4 Mbit 4 4096 512
5 Mbit 5 5120 640
10 Mbit 10 10240 1280 1.25
100 Mbit 100 102400 12800 12.5
Giga Bit 1 1024 1048576 131072 128

This second table is to help show the comparison of 1000 to 1024. Most hard drive manufactures advertise a 200 gig hard drive that has 200000000000 bytes while windows identifies it as around 186 gigs. Where did the other 14 gigs go?

Tera Bytes Giga Bytes Mega Bytes Kilo Bytes Bytes Bits
1 8
1 1024 8192
1 1024 1048576 8388608
0.931 953.67 976562.5 1000000000 8000000000
1 1024 1048576 1073741824 8589934592
37.25 38146.9 39062500 40000000000 320000000000
40 40960 41943040 42949672960 343597383680
186.26 190734.8 195312500 200000000000 1600000000000
200 204800 209715200 214748364800 1717986918400
1 1024 1048576 1073741824 1099511627776 8796093022208

Curious how fast your internet is?


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