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Convert Kilobytes to Bytes

1 kilobyte is 1,000 B. One kilobyte is exactly 1000 bytes.

One kilobyte is 1000 bytes. To convert kilobytes to bytes, multiply by 1000; to go the other way, divide by 1000 or multiply by 0.001. The factor is exact rather than rounded: it follows from IEC 80000-13. Exactly 1,000 bytes under the SI prefix, which is what drive manufacturers and network speeds use.

Factor checked against the defining standard · How we check

Bytes
1,000 B
Kilobytes × 1000
value * 10001,000 B

1 kilobyte in every data unit

UnitValueExact factor
bytes1,000 B× 1,000
kilobytes (as entered)1 kB
megabytes0.001 MB× 0.001
gigabytes0.000001 GB× 0.000001
terabytes0.000000001 TB× 0.000000001
kibibytes0.9765625 KiB× 0.9765625
mebibytes0.0009536743164 MiB× 0.000953674316406
gibibytes0.0000009313225746 GiB× 0.000000931322574615

Factors are entered by hand from IEC 80000-13 rather than derived from a units library, so the ones that terminate are exact rather than rounded.

How do you convert kilobytes to bytes?

  1. 1.Take the measurement in kilobytes.
  2. 2.Multiply by 1000 — that is how many bytes fit in one kilobyte.
  3. 3.To go back the other way, divide by 1000, or multiply by 0.001.

Kilobytes to bytes conversion table

KilobytesBytes
1 kB1,000 B
2 kB2,000 B
3 kB3,000 B
4 kB4,000 B
5 kB5,000 B
6 kB6,000 B
7 kB7,000 B
8 kB8,000 B
9 kB9,000 B
10 kB10,000 B
12 kB12,000 B
15 kB15,000 B
20 kB20,000 B
25 kB25,000 B
50 kB50,000 B
100 kB100,000 B

What are kilobytes and bytes?

Kilobyte (kB)
Exactly 1,000 bytes under the SI prefix, which is what drive manufacturers and network speeds use. Not 1,024 — that is the kibibyte.
Byte (B)
Eight bits. The smallest unit storage is actually sold and addressed in.

Source: IEC 80000-13 — binary prefixes for information quantities

Questions people actually ask

How many bytes are in a kilobyte?
1000. Eight bits. The smallest unit storage is actually sold and addressed in.
How do I convert bytes back to kilobytes?
Divide by 1000, or multiply by 0.001 — they are the same operation.

Other data conversions

Bytes to kilobytes — the same conversion the other way.