Convert digital storage units online — decimal (MB, GB) and binary (MiB, GiB).
Convert between digital storage units, correctly distinguishing decimal (KB, MB, GB = powers of 1000) from binary (KiB, MiB, GiB = powers of 1024).
1 GB = 1,000,000,000 bytes (decimal); 1 GiB = 1,073,741,824 bytes (binary). Drives advertise GB, operating systems often show GiB — hence the "missing" space.
B, KB, MB, GB, TB, PB and the binary KiB, MiB, GiB, TiB, PiB.