Bytes to Bits Converter
One Byte equals 8 Bits (1 B = 8 bit). Multiply a Byte value by 8 to get the equivalent in Bits. Use the calculator above for your value, or check the examples and reference table below.
Formula
bit = B × 8
Multiply the Byte value by 8 to get the equivalent value in Bits.
Example Conversions
1 Byte (B)
8 Bit (bit)
5 Byte (B)
40 Bit (bit)
10 Byte (B)
80 Bit (bit)
25 Byte (B)
200 Bit (bit)
100 Byte (B)
800 Bit (bit)
Conversion Table
| Byte (B) | Bit (bit) |
|---|---|
| 0.1 | 0.8 |
| 0.5 | 4 |
| 1 | 8 |
| 2 | 16 |
| 5 | 40 |
| 10 | 80 |
| 25 | 200 |
| 50 | 400 |
| 100 | 800 |
| 250 | 2000 |
| 500 | 4000 |
| 1000 | 8000 |
How to Convert Manually
Use these steps to convert Byte values to Bit without the calculator.
- Write down the value in Byte (B) that you want to convert.
- Multiply that value by 8.
- For example, 10 Bytes × 8 = 80 Bits.
- Label the result as Bit (bit).
Relative Size Comparison
This chart shows the visual difference in size between exactly one Byte and one Bit.
About Byte and Bit
The byte is 8 bits, the basic addressable unit of computer storage. One byte holds a single ASCII character, and all file sizes build up from it. The bit is the smallest unit of digital information, a single 0 or 1. Network speeds are quoted in bits per second, which is why a '100 Mb' connection downloads at about 12.5 MB per second. One Byte equals 8 Bits (1 B = 8 bit). Byte is used in file size fundamentals and in network protocol fields. Bit is used in network bandwidth ratings.
Precision and Rounding:This converter keeps SI decimal prefixes (1 KB = 1,000 bytes) separate from IEC binary prefixes (1 KiB = 1,024 bytes). Match the symbol used by your source before converting because some operating-system interfaces display binary quantities with decimal labels.
See our guide to megabits vs. megabytes if you're unsure which one your download speed is quoted in.
Data units follow NIST guidance: decimal SI prefixes use powers of 1,000, while IEC binary prefixes use powers of 1,024 (reference).
Worked Example
15Bytes equals120Bits.
15 B × 8 = 120 bit
FAQ
How do I convert Byte to Bit?
Multiply the Byte value by 8 to get the equivalent value in Bits.
What is the formula for Byte to Bit?
The formula is bit = B × 8.
How many Bits are in 1 Byte?
1 Byte equals 8 Bits.
Can I convert Bit back to Byte?
Yes. 1 Bit equals 0.125 Bytes, and the related converter can reverse the calculation.
What are common names for Byte and Bit?
Byte is shown as B and may also be searched as bytes. Bit is shown as bit and may also be searched as bits.
Was this page helpful?
Let us know if this converter met your needs.