Kilobyte (kB)
One thousand bytes (decimal). Some software uses "KB" for 1024 bytes; that unit is the kibibyte (KiB).
What is a kilobyte?
- Symbol
- kB
- Quantity
- Data Storage
- Unit system
- SI
- Definition
- One thousand bytes (decimal). Some software uses "KB" for 1024 bytes; that unit is the kibibyte (KiB).
- Exact
- Yes, the value is exact by definition
- Source
- IEC 80000-13:2008, Quantities and units: Information science and technology
Common applications
Used for small files such as text documents, emails and icons.
Kilobyte in other data storage units
- 1 kB = 8000 bitBit
- 1 kB = 2000 nibbleNibble
- 1 kB = 1000 BByte
- 1 kB = 8 kbitKilobit
- 1 kB = 0.008 MbitMegabit
- 1 kB = 0.000008 GbitGigabit
- 1 kB = 8e-9 TbitTerabit
- 1 kB = 0.001 MBMegabyte
- 1 kB = 0.000001 GBGigabyte
- 1 kB = 1e-9 TBTerabyte
- 1 kB = 1e-12 PBPetabyte
- 1 kB = 7.8125 KibitKibibit
- 1 kB = 0.00762939453125 MibitMebibit
- 1 kB = 0.9765625 KiBKibibyte
- 1 kB = 0.00095367431640625 MiBMebibyte
- 1 kB ≈ 9.313225746e-7 GiBGibibyte
- 1 kB ≈ 9.094947018e-10 TiBTebibyte
- 1 kB ≈ 8.881784197e-13 PiBPebibyte
Kilobyte quick reference
| Kilobyte | Gigabyte | Gibibyte | Bit |
|---|---|---|---|
| 1 kB | = 0.000001 GB | ≈ 9.313225746e-7 GiB | = 8000 bit |
| 10 kB | = 0.00001 GB | ≈ 0.000009313225746 GiB | = 80000 bit |
| 100 kB | = 0.0001 GB | ≈ 0.00009313225746 GiB | = 800000 bit |
| 1000 kB | = 0.001 GB | ≈ 0.0009313225746 GiB | = 8000000 bit |
Where the kilobyte fits
The next smaller data storage unit is the kibibit (Kibit). 1 kB = 7.8125 Kibit, and 1 Kibit = 0.128 kB.
The next larger data storage unit is the kibibyte (KiB). 1 kB = 0.9765625 KiB, and 1 KiB = 1.024 kB.
Frequently asked questions
- How many gigabytes are in one kilobyte?
- One kilobyte = 0.000001 GB (gigabytes).
- How many gibibytes are in one kilobyte?
- One kilobyte ≈ 9.313225746e-7 GiB (gibibytes).
- How many bits are in one kilobyte?
- One kilobyte = 8000 bit (bits).