KB to KiB Converter
Convert kilobytes to kibibytes — 1,000 bytes against 1,024. Results update as you type; exact factors shown.
One kilobyte (10³) is 0.9766 kibibyte (2¹⁰) — see the exact factor, not a rounded rule of thumb.
How the kb to kib 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 US uses customary units (US gallon, short ton, °F) in daily life; NIST SP 811 gives the exact SI factors.
Common data conversions
| From | To | Units |
|---|---|---|
| 1 kB | 0.9766 KiB | kilobyte (10³) to kibibyte (2¹⁰) |
| 2 kB | 1.9531 KiB | kilobyte (10³) to kibibyte (2¹⁰) |
| 5 kB | 4.8828 KiB | kilobyte (10³) to kibibyte (2¹⁰) |
| 10 kB | 9.7656 KiB | kilobyte (10³) to kibibyte (2¹⁰) |
| 50 kB | 48.8281 KiB | kilobyte (10³) to kibibyte (2¹⁰) |
| 100 kB | 97.6563 KiB | kilobyte (10³) to kibibyte (2¹⁰) |
| 500 kB | 488.2813 KiB | kilobyte (10³) to kibibyte (2¹⁰) |
| 1,000 kB | 976.5625 KiB | kilobyte (10³) to kibibyte (2¹⁰) |
| 1,024 kB | 1,000 KiB | kilobyte (10³) to kibibyte (2¹⁰) |
| 2,000 kB | 1,953.125 KiB | kilobyte (10³) to kibibyte (2¹⁰) |
| 5,000 kB | 4,882.8125 KiB | kilobyte (10³) to kibibyte (2¹⁰) |
| 10,000 kB | 9,765.625 KiB | kilobyte (10³) to kibibyte (2¹⁰) |
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 KiB is 1 KB?
0.9766 KiB.
Why are there two kilobytes?
Computers count in powers of two, the SI prefix means a thousand, and the industry used one name for both until the binary prefixes arrived in 1998.
Which is bigger?
A kibibyte, by 2.4%.
Does the difference matter?
It compounds: at terabyte scale it is nearly 10%, which is why a 1 TB drive shows as 931 GiB.
What is 1,000 KB in KiB?
976.6 KiB.
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 Institute of Standards and Technology (NIST) — United States's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.