Gigabytes to kilobytes
Multiply gigabytes by 1,000,000 to get kilobytes.
10 GB = 10,000,000 kB
How to convert gigabytes to kilobytes
The kilobyte is one thousand bytes (10³ B) in the decimal (SI) convention. The gigabyte is one billion bytes (10⁹ B) in the decimal convention.
Worked example — 10 GB: 10 × 1,000,000 = 10,000,000 kB.
Gigabytes to kilobytes table
| Gigabytes | Kilobytes |
|---|---|
| 0.5 GB | 500,000 kB |
| 1 GB | 1,000,000 kB |
| 2 GB | 2,000,000 kB |
| 5 GB | 5,000,000 kB |
| 10 GB | 10,000,000 kB |
| 50 GB | 50,000,000 kB |
| 100 GB | 100,000,000 kB |
| 500 GB | 500,000,000 kB |
| 1,000 GB | 1,000,000,000 kB |
Reverse and related
About gigabytes and kilobytes
Gigabyte (GB)
1 GB = 1,000,000 kBDefinition. One billion bytes (10⁹ B) in the decimal convention
History and origin
The gigabyte uses the metric giga prefix for a billion bytes. Drive makers label capacity in decimal gigabytes, while operating systems often report the binary gibibyte, which is why sizes seem to disagree.
Current use
Gigabytes measure phone storage, memory and mobile data plans.
Source: IEC 80000-13 (quantities and units — information science); NIST on binary prefixes
Kilobyte (kB)
1 kB = 0.000001 GBDefinition. One thousand bytes (10³ B) in the decimal (SI) convention
History and origin
The kilobyte took the metric kilo prefix for a thousand, but in computing it was often used loosely for 1024 bytes. The IEC later defined the kibibyte for the binary value to remove the ambiguity.
Current use
Kilobytes measure small files and text documents; in strict decimal use a kilobyte is exactly one thousand bytes.
Source: IEC 80000-13 (quantities and units — information science); NIST on binary prefixes
Where people use this
Gigabytes: phone storage, mobile data plans. Kilobytes: small files, documents. 1 GB is 1 000 000 kB (decimal).
Every value is carried to full double precision; the display is rounded.
Both units are defined in IEC 80000-13 (quantities and units — information science); NIST on binary prefixes.
Questions people ask
How many kB in a GB?
One gigabyte is 1,000,000 kilobytes in the decimal convention (1000 kB per MB, 1000 MB per GB).
How many kB is 2 GB?
2 GB is 2,000,000 kB.
How many kB is 0.5 GB?
Half a gigabyte is 500,000 kB.