The Internet measures data-transfer rates one way bits per second but all the more popular Web browsers show file download performance in bytes per second. How do you figure this out? This article explains the difference, and gives you real-world examples and conversions. Here's the Data Transfer Rate Conversion Table.
Broadband Data-Transfer Rates | |||
Typical Service Level | kilobits per second (kbps) | Kilobytes per second (KB/sec) | Estimated Ideal Throughput |
"28.8K" Analog Modem | 28.8-kbps | 3.6-KB/sec | 2.8-KB/sec |
"33.6K" Analog Modem | 33.6-kbps | 4.2-KB/sec | 3.3-KB/sec |
"56K" Analog Modem | 53.3-kbps | 6.6-KB/sec | 5.2-KB/sec |
1-channel ISDN | 56-kbps | 7-KB/sec | 5.4-KB/sec |
1-channel ISDN | 64-kbps | 8-KB/sec | 6.2-KB/sec |
2-channel ISDN | 115.2-kbps | 14.4-KB/sec | 11.2-KB/sec |
2-channel ISDN / IDSL | 128-kbps | 16-KB/sec | 12.5-KB/sec |
Fractional T-1 | 256-kbps | 32-KB/sec | 25-KB/sec |
384 S-DSL | 384-kbps | 48-KB/sec | 37.5-KB/sec |
Satellite | 400-kbps | 50-KB/sec | 39-KB/sec |
Fractional T-1 | 512-kbps | 64-KB/sec | 50-KB/sec |
Cable / DSL | 768-kbps | 96-KB/sec | 75-KB/sec |
1-Mbps / Cable / DSL | 1,000-kbps | 125-KB/sec | 98-KB/sec |
T-1 / Cable / DSL | 1,544-kbps | 193-KB/sec | 151-KB/sec |