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Kilobytes to Bytes Converter

1 kB = 1000 B

1 kilobyte equals 1000 bytes. To convert kilobytes to bytes, multiply the kilobyte value by 1000. For quick reference: 1 kB = 1000 B, 5 kB = 5000 B, 10 kB = 10000 B, 100 kB = 100000 B.

1000
FormulaBytes = Kilobytes × 1000
Quick

How to convert kilobytes to bytes

  1. Take your value

    Start with your value in kilobytes.

  2. Multiply by 1000

    Multiply the kilobyte value by 1000. This is the exact conversion factor from kilobytes to bytes.

  3. Read the result

    The product is your value in bytes. For example, 5 kB × 1000 = 5000 B.

Conversion formula

The exact factor from kilobytes to bytes is 1000.

Bytes = Kilobytes × 1000

Kilobytes to Bytes conversion table

Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.

Conversion table from kilobytes to bytes
Kilobytes (kB)Bytes (B)
1 kB1000 B
8 kB8000 B
16 kB16000 B
64 kB64000 B
100 kB100000 B
256 kB256000 B
500 kB500000 B
512 kB512000 B
1000 kB1000000 B
1024 kB1024000 B
2000 kB2000000 B
2048 kB2048000 B
4096 kB4096000 B
5000 kB5000000 B
8192 kB8192000 B
10000 kB10000000 B
16384 kB16384000 B
25000 kB25000000 B
32768 kB32768000 B
50000 kB50000000 B
65536 kB65536000 B
100000 kB100000000 B
131072 kB131072000 B
250000 kB250000000 B
500000 kB500000000 B
524288 kB524288000 B
1000000 kB1000000000 B
1048576 kB1048576000 B
2000000 kB2000000000 B
5000000 kB5000000000 B
10000000 kB10000000000 B
50000000 kB50000000000 B
100000000 kB100000000000 B
500000000 kB500000000000 B
1000000000 kB1000000000000 B
2000000000 kB2000000000000 B
5000000000 kB5000000000000 B
10000000000 kB10000000000000 B
50000000000 kB50000000000000 B
100000000000 kB100000000000000 B
500000000000 kB500000000000000 B
1000000000000 kB1.0000 × 10^15 B
2000000000000 kB2.0000 × 10^15 B
5000000000000 kB5.0000 × 10^15 B
10000000000000 kB1.0000 × 10^16 B
100000000000000 kB1.0000 × 10^17 B
1000000000000000 kB1.0000 × 10^18 B
10000000000000000 kB1.0000 × 10^19 B
100000000000000000 kB1.0000 × 10^20 B
1000000000000000000 kB1.0000 × 10^21 B

Real-world reference

A short text email is around 5–10 kB. A typical web font weight is 30–50 kB. In bytes, that gives you: 1 kB = 1000 B, 10 kB = 10000 B, 100 kB = 100000 B.

Frequently asked questions

How many bytes are in 1 kilobyte?
1 kilobyte equals 1000 bytes.
How do I convert kilobytes to bytes?
Multiply the kilobyte value by 1000. So x kB × 1000 = the equivalent in B.
What is 5 kilobytes in bytes?
5 kilobytes equals 5000 bytes.
What is 10 kilobytes in bytes?
10 kilobytes equals 10000 bytes.
What is 100 kilobytes in bytes?
100 kilobytes equals 100000 bytes.
How do I convert back from bytes to kilobytes?
Multiply the byte value by 0.001. For example, 1 B = 0.001 kB.
Is the kilobyte bigger than the byte?
Yes. 1 kilobyte is larger than 1 byte — specifically 1000 times larger.
Are these conversion factors exact?
Yes. The factor of 1000 is derived directly from the SI definitions of kilobyte and byte.

About the kilobyte and the byte

The kilobyte

The kilobyte (kB) equals exactly 1,000 bytes in the SI/IEC decimal convention. Most modern OS file managers and storage-vendor marketing use this definition. Older operating systems (Windows up to Vista) used 1 kB = 1,024 B — that value is now strictly called the kibibyte (KiB).

The byte

A byte is 8 bits — the smallest addressable unit on virtually every modern computer. ASCII text is one byte per character; UTF-8 ranges from 1 to 4 bytes per character.

Related converters

Bytes to Kilobytes
B → kB
Bits to Bytes
bit → B
Bits to Kilobytes
bit → kB
Bits to Megabytes
bit → MB
Bits to Gigabytes
bit → GB
Bits to Terabytes
bit → TB

Sources