How man KB is one gb?

One gigabyte (GB) is equal to 1,024 kilobytes (KB). This is based on the binary system used in computing, where each unit is a power of 2. Therefore, 1 GB is calculated as 1,024 MB (megabytes), and since 1 MB equals 1,024 KB, the total comes to 1,024 x 1,024 KB, which equals 1,048,576 KB.