How to convert bytes to bits
To convert bytes to bits, multiply by 8. Data size conversions matter for file uploads, cloud storage plans, hard drives and internet usage. Decimal (SI) prefixes are used: 1 KB = 1,000 bytes.
Byte to Bit conversion table
| Byte (B) | Bit (bit) |
|---|---|
| 0.1 B | 0.8 bit |
| 0.5 B | 4 bit |
| 1 B | 8 bit |
| 2 B | 16 bit |
| 3 B | 24 bit |
| 4 B | 32 bit |
| 5 B | 40 bit |
| 10 B | 80 bit |
| 20 B | 160 bit |
| 25 B | 200 bit |
| 50 B | 400 bit |
| 100 B | 800 bit |
| 500 B | 4,000 bit |
| 1,000 B | 8,000 bit |
About the units
Byte (B)
A byte is 8 bits and typically stores one character of text.
Bit (bit)
A bit is the smallest unit of digital information, a single 0 or 1.
How to use this converter
- Type the number of bytes (B) in the input box.
- The result in bits appears instantly — no button needed.
- See the same value in every other data storage unit just below.
- Use “Swap units” to convert bits back to bytes.
When you’ll use the byte to bit conversion
Converting bytes to bits comes up more often than you might expect — for example when planning backups, reading hard drive and SSD specs, or checking whether a file fits an upload limit. Type your number once and you get the exact answer plus every related unit, so you don’t need to convert twice.
💡 The factor is exact and easy to remember: 1 B = 8 bit.
Watch out for these mix-ups
- Drive makers use 1 KB = 1,000 bytes; operating systems often show KiB (1,024).
- Internet speeds are in bits per second, file sizes in bytes — a factor of 8.
Tips for better results
- Double-check which system a unit belongs to (for example US vs UK gallons).
- Use the swap button to convert in the opposite direction instantly.
- Bookmark the conversions you use most — each pair has its own page.
Frequently asked questions
How many bits are in one byte?
One byte equals 8 bits. 8 is the exact factor used by this converter.
How do I convert bytes to bits?
Multiply the value in bytes by 8. To go the other way, multiply bits by 0.125.
What is 10 B in bit?
10 B = 80 bit. Also, 5 B = 40 bit and 100 B = 800 bit.
What is the difference between a byte and a bit?
A byte is 8 bits and typically stores one character of text. A bit is the smallest unit of digital information, a single 0 or 1.
Is this tool free and private?
Yes — the Byte to Bit is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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