How to calculate

Kbps -> KB

Just devide by 8. | 128Kbps / 8 = 16 KB

Mbps -> MB

Mbps * 1.000.000 / 8 / 2^20 | 12 * 1.000.000 = 12000000 bits / 8 = 1.500.000 bytes / 2^20 = 1,43 MB

Gbps -> MB

Gbps * 10^9 / 8 / 2^20 | 12 * 10^9 = 12.000.000.000 bits / 8 = 1.500.000.000 bytes / 2^20 = 1430,51 MB

Mbit -> MB

Mbit * 2^20 / 8 / 2^20 | 12 * 2^20 = 12.582.912 bits / 8 = 1.572.864 bytes / 2^20 = 1,5 MB