Calculyn

Data Storage Converter

Convert between bytes, KB, MB, GB, TB and bits — with both decimal and binary units.

Results update as you type.

In bytes

500,000,000B
Bits
4,000,000,000
Kilobytes (KB)
500,000
Megabytes (MB)
500
Gigabytes (GB)
0.5
Terabytes (TB)
0
Mebibytes (MiB)
476.8
Gibibytes (GiB)
0.47
In bytes500,000,000

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Quick answer

500 GB is 500 billion bytes — about 465.7 GiB, or 0.5 TB.

How it works

Storage makers use decimal units (1 GB = 1 billion bytes) while operating systems often show binary units (1 GiB = 1,073,741,824 bytes) — which is why a 500 GB drive shows about 465 GiB.

Formula

Convert everything to bytes first, then divide by the target unit

Assumptions & limitations

  • Results are rounded for display.

Frequently asked questions

Why does my drive show less space than advertised?

Drives are sold in decimal GB but computers often display binary GiB, which are about 7% larger per unit.