The unit symbol of Megabyte is MB. 1 KB (Kilobyte) is equal to 0.001 MB in decimal and 0.0009765625 MB in binary. It also means that 1 megabyte is equal to 1000 kilobytes in decimal and 1024 kilobytes in binary. ... So as you can see, a Megabyte is one thousand times bigger than a Kilobyte.