KB to GB Converter
Convert kilobytes to gigabytes — a million kilobytes to the gigabyte. Results update as you type; exact factors shown.
One kilobyte (10³) is 0 gigabyte (10⁹) — see the exact factor, not a rounded rule of thumb.
How the kb to gb converter works
Storage converts through the byte (8 bits). Drive makers and network speeds use decimal prefixes (1 GB = 10⁹ bytes); operating systems often report binary units (1 GiB = 2³⁰ = 1,073,741,824 bytes) — sometimes labelled "GB". The gap is 7.4% at the gigabyte and 10% at the terabyte.
The UK is metric for most trade and science but keeps miles, pints, stone and mpg (with the imperial gallon) in daily life.
Common data conversions
| From | To | Units |
|---|---|---|
| 1,000 kB | 0.001 GB | kilobyte (10³) to gigabyte (10⁹) |
| 10,000 kB | 0.01 GB | kilobyte (10³) to gigabyte (10⁹) |
| 100,000 kB | 0.1 GB | kilobyte (10³) to gigabyte (10⁹) |
| 500,000 kB | 0.5 GB | kilobyte (10³) to gigabyte (10⁹) |
| 1,000,000 kB | 1 GB | kilobyte (10³) to gigabyte (10⁹) |
| 2,000,000 kB | 2 GB | kilobyte (10³) to gigabyte (10⁹) |
| 5,000,000 kB | 5 GB | kilobyte (10³) to gigabyte (10⁹) |
| 10,000,000 kB | 10 GB | kilobyte (10³) to gigabyte (10⁹) |
| 16,000,000 kB | 16 GB | kilobyte (10³) to gigabyte (10⁹) |
| 32,000,000 kB | 32 GB | kilobyte (10³) to gigabyte (10⁹) |
| 64,000,000 kB | 64 GB | kilobyte (10³) to gigabyte (10⁹) |
| 100,000,000 kB | 100 GB | kilobyte (10³) to gigabyte (10⁹) |
Units in this converter and their exact factors
| Unit | Symbol | One unit in bytes |
|---|---|---|
| bit | bit | 0.125 byte |
| byte | B | 1 byte |
| kilobyte (10³) | kB | 1,000 byte |
| megabyte (10⁶) | MB | 1,000,000 byte |
| gigabyte (10⁹) | GB | 1,000,000,000 byte |
| terabyte (10¹²) | TB | 1,000,000,000,000 byte |
| kibibyte (2¹⁰) | KiB | 1,024 byte |
| mebibyte (2²⁰) | MiB | 1,048,576 byte |
| gibibyte (2³⁰) | GiB | 1,073,741,824 byte |
| tebibyte (2⁴⁰) | TiB | 1,099,511,627,776 byte |
FAQFrequently asked questions about data conversion
How many KB in a GB?
1,000,000 on the decimal definition used for storage and transfer.
What is 500,000 KB in GB?
0.5 GB.
Is a GB 1,024 MB?
Not on the decimal definition. The 1,024-based unit is the gibibyte, GiB, which is about 7.4% larger.
Why do file sizes look different in Windows?
Windows labels binary units with decimal names — what it calls GB is really GiB.
How big is a kilobyte in practice?
About a page of plain text, or a very small icon.
Where these figures come from
- BIPM — The International System of Units (SI Brochure, 9th edition) — definitions of the base and derived units.
- NIST Special Publication 811 — Guide for the Use of the International System of Units — the exact conversion factors used here.
- National Physical Laboratory (NPL) — United Kingdom's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.