Reference
A byte count as kilobytes: divide by 1,000 or by 1,024.
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Quick answer
KB = bytes ÷ 1,000 (decimal). KiB = bytes ÷ 1,024 (binary). Example: 2,048 bytes = 2.048 KB, and exactly 2 KiB.
How to convert bytes to KB
Kilobytes = bytes ÷ 1,000. Kibibytes = bytes ÷ 1,024 (2^10). This page divides the number you type both ways and labels each result. For the reverse, use the KB to bytes converter. To go further up, use the byte to MB converter or the bytes to GB converter.
- 1,500 bytes is 1.5 KB decimal and about 1.464844 KiB.
- 4,096 bytes is 4.096 KB decimal and exactly 4 KiB.
- 65,536 bytes is 65.536 KB decimal and exactly 64 KiB.
- Fast estimate: move the decimal point three places left.
Bytes to KB conversion table
| Bytes | KB (÷ 1,000) | KiB (÷ 1,024) |
|---|---|---|
| 1 | 0.001 KB | ≈ 0.000977 KiB |
| 10 | 0.01 KB | ≈ 0.009766 KiB |
| 100 | 0.1 KB | ≈ 0.097656 KiB |
| 500 | 0.5 KB | ≈ 0.488281 KiB |
| 1,000 | 1 KB | ≈ 0.976563 KiB |
| 1,024 | 1.024 KB | 1 KiB |
| 1,500 | 1.5 KB | ≈ 1.464844 KiB |
| 2,000 | 2 KB | 1.953125 KiB |
| 2,048 | 2.048 KB | 2 KiB |
| 4,096 | 4.096 KB | 4 KiB |
| 5,000 | 5 KB | ≈ 4.882813 KiB |
| 8,192 | 8.192 KB | 8 KiB |
| 10,000 | 10 KB | 9.765625 KiB |
| 20,000 | 20 KB | 19.53125 KiB |
| 50,000 | 50 KB | 48.828125 KiB |
| 65,536 | 65.536 KB | 64 KiB |
| 100,000 | 100 KB | 97.65625 KiB |
| 1,000,000 | 1,000 KB | 976.5625 KiB |
Values marked ≈ are rounded to six decimal places. Unmarked values are exact.
KB to bytes
| Kilobytes | bytes (× 1,000) | bytes (× 1,024) |
|---|---|---|
| 1 | 1,000 bytes | 1,024 bytes |
| 2 | 2,000 bytes | 2,048 bytes |
| 5 | 5,000 bytes | 5,120 bytes |
| 10 | 10,000 bytes | 10,240 bytes |
| 50 | 50,000 bytes | 51,200 bytes |
| 100 | 100,000 bytes | 102,400 bytes |
Decimal and binary kilobytes
A kilobyte is 1,000 bytes in the SI system, and that is what drive labels and network speeds use. A kibibyte is 1,024 bytes (2^10), and it is the unit Windows and RAM sizes usually mean even when they print KB. The two answers on this page come from the same bytes, named both ways.
Frequently asked questions
How do I convert bytes to KB?
Divide the bytes by 1,000 for decimal kilobytes, or by 1,024 for binary kibibytes. 5,000 bytes = 5 KB, or about 4.882813 KiB.
How many KB is 1,024 bytes?
1,024 bytes = 1.024 KB in decimal, and exactly 1 KiB in binary.
Is 1 KB equal to 1024 bytes?
In the binary system, yes (1 KiB). In the SI system, 1 KB is 1,000 bytes.
How many KB is 500 bytes?
500 bytes = 0.5 KB in decimal, or about 0.488281 KiB in binary.
How many KB is 1 MB?
1 MB = 1,000 KB in decimal units, and 1 MiB = 1,024 KiB in binary units. See the MB to KB converter.
What is 1 byte equal to?
1 byte is 8 bits.
Why does a file show a different size in two programs?
One may divide by 1,000 and the other by 1,024. The byte count is the same. Convert from the bytes to compare them fairly.
Does this converter upload my numbers?
No. The conversion runs in your browser with exact integer arithmetic, so nothing you type leaves the page.