GB to KB Conversion Gigabytes to Kilobytes Calculator

1 GB = 10 6 KB in base 10 (SI). 1 Gigabyte is equal to 1048576 kilobytes (binary). 1 GB = 2 20 KB in base 2. Difference Between GB and KB. Gigabyte unit symbol is GB, Kilobyte unit symbol is KB. Gigabyte is greater than Kilobyte. GB has the prefix Giga. KB has the prefix Kilo. Gigabyte is 1000000 times bigger than Kilobyte.