Convert Gigabits to Kilobytes (Gbit to kB)
1 gigabit (Gbit) = 125000 kilobytes (kB). 1 kB = 0.000008 Gbit. Example: 15 Gbit = 15 × 125000 = 1875000 kB.
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1 Gbit = 125000 kB
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk gigabit to kilobyte converter to paste a column from Excel.
How to Convert Gigabit to Kilobyte
- 1 Gbit = 125000 kB
- 1 kB = 0.000008 Gbit
- Example: convert 15 Gbit to kB: 15 Gbit = 15 × 125000 kB = 1875000 kB
Formula
kB = Gbit × 125000
Derivation from SI units:
- 1 Gbit = 10⁹ bits.
- 1 kB = 1000 bytes = 8000 bits (decimal, SI).
- 1 Gbit = 1000000000 bit ÷ 8000 bit per kB = 125000 kB
Both units are defined exactly, so the factor is exact. Gigabit definition: gigabit; Kilobyte definition: kilobyte.
Worked examples
- A reading of 16 Gbit converts to 2000000 kB.
16 Gbit × 125000 = 2000000 kB - A value of 128 Gbit is 16000000 kB.
128 Gbit × 125000 = 16000000 kB
Gigabit to Kilobyte conversion table
| Gigabits (Gbit) | Kilobytes (kB) |
|---|---|
| 1 Gbit | 125000 kB |
| 2 Gbit | 250000 kB |
| 4 Gbit | 500000 kB |
| 8 Gbit | 1000000 kB |
| 16 Gbit | 2000000 kB |
| 32 Gbit | 4000000 kB |
| 64 Gbit | 8000000 kB |
| 100 Gbit | 12500000 kB |
| 128 Gbit | 16000000 kB |
| 256 Gbit | 32000000 kB |
| 500 Gbit | 62500000 kB |
| 1000 Gbit | 125000000 kB |
Where it's used
Gigabits are used for DRAM and NAND flash chip densities, while kilobytes appear in small files, emails and web pages. Both measure amount of digital information, so the conversion is a fixed factor.
Gigabit to other data storage units
| Conversion | 1 Gbit equals |
|---|---|
| gigabit to kilobyte | 125000 kB |
| gigabit to byte | 125000000 B |
| gigabit to megabyte | 125 MB |
| gigabit to gigabyte | 0.125 GB |
| gigabit to terabyte | 0.000125 TB |
| gigabit to bit | 1000000000 bit |
| gigabit to megabit | 1000 Mbit |
| gigabit to kibibyte | 122070.3125 KiB |
Show 5 more units
| gigabit to mebibyte | 119.2092896 MiB |
|---|---|
| gigabit to gibibyte | 0.1164153218 GiB |
| gigabit to kilobit | 1000000 kbit |
| gigabit to petabyte | 1.25 × 10⁻⁷ PB |
| gigabit to tebibyte | 0.0001136868377 TiB |
Frequently asked questions
How many kilobytes are in 1 gigabit?
1 Gbit = 125000 kB.
How do I convert gigabits to kilobytes?
Multiply the value in Gbit by 125000. For example, 15 Gbit × 125000 = 1875000 kB.
Is the Gbit to kB conversion exact?
Yes. Both units are defined exactly, and 1 Gbit is exactly 125000 kB.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Gigabits to Kilobytes (Gbit to kB). Retrieved October 25, 2026, from https://scientificconverters.com/data-storage/gigabits-to-kilobytes/
IEEE
Scientific Converters, "Convert Gigabits to Kilobytes (Gbit to kB)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/data-storage/gigabits-to-kilobytes/