Byte to Bit Converter
Quick answer
To convert Bytes to Bits, multiply by 8 (or divide by 0.125). Therefore, 1 Byte (B) equals 8 Bits (b).
Formula: b = B × 8. Worked example: 10 B = 80 b.
Convert Byte (B) to Bit (b) online with our free unit converter. In data, 1 B = 8 b. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Byte to Bit
- Step 1 — start with the formula. b = B × 8
- Step 2 — substitute your figure. 10 B × 8
- Step 3 — read the result. 10 B = 80 b
- Step 4 — check it in reverse. B = b × 0.125 returns 10 B, which matches the figure you started with.
Data Converter
21 units available
1 B = 8 b
Formula:
b = B × 8With your value: 1 B = 8 b
How big is that?
Everyday references on a logarithmic scale, all expressed in byte so you can sanity-check the result.
Other Byte to Bit conversions
Byte to Bit Conversion Table
| Byte (B) | Bit (b) |
|---|---|
| 0.5 | 4 |
| 1 | 8 |
| 2 | 16 |
| 5 | 40 |
| 10 | 80 |
| 15 | 120 |
| 20 | 160 |
| 25 | 200 |
| 50 | 400 |
| 100 | 800 |
| 250 | 2,000 |
| 500 | 4,000 |
| 1000 | 8,000 |
Bit to Byte Conversion Table
| Bit (b) | Byte (B) |
|---|---|
| 0.5 | 0.0625 |
| 1 | 0.125 |
| 2 | 0.25 |
| 5 | 0.625 |
| 10 | 1.25 |
| 15 | 1.875 |
| 20 | 2.5 |
| 25 | 3.125 |
| 50 | 6.25 |
| 100 | 12.5 |
| 250 | 31.25 |
| 500 | 62.5 |
| 1000 | 125 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Byte (B)
Data
One byte is eight bits (octet) in all modern computing standards.
Source: IEC 80000-13:2008, Quantities and units — Part 13: Information science and technology
International Electrotechnical Commission · Reviewed 2026-07-01
Bit (b)
Data
Decimal prefixes (kB, MB) are powers of 1000; binary prefixes (KiB, MiB) are powers of 1024 as standardised by IEC 80000-13.
Source: IEC 80000-13:2008, Quantities and units — Part 13: Information science and technology
International Electrotechnical Commission · Reviewed 2026-07-01
Standards and context behind Byte to Bit
- Octet
- The unambiguous term for 8 bits, used in networking standards where "byte" was historically machine-dependent.
How to Convert Byte to Bit
To convert from Byte (B) to Bit (b), multiply the value by 8.
Formula: b = B × 8
Reverse: B = b × 0.125
Step-by-Step Example
- Start with your value in Byte. For example: 5 B
- Multiply by the conversion factor: 5 x 8
- The result is: 40 b
Byte and Bit Relationship
This calculation facilitates standardized conversion between recognized units of data. Since 1 Byte equals approximately 8 Bits, the Byte represents a larger unit interval than the Bit. Understanding the relationship between Byte and Bit is essential for accurate calculations in physics, engineering, commerce, and daily applications.
About Byte
The Byte (symbol: B) is a recognized unit in the Metric (SI) measurement framework, utilized within data applications for precision and standardized data representation.
Common uses of Byte: data calculations, engineering and science, education.
About Bit
The Bit (symbol: b) is a recognized unit in the Standard measurement framework, utilized within data applications for precision and standardized data representation.
Common uses of Bit: data calculations, engineering and science, education.
Frequently Asked Questions
- How many Bits are in 1 Byte?
- There are exactly 8 Bits in 1 Byte. This means the conversion factor from Byte to Bit is 8.
- What is the formula to convert Byte to Bit?
- The formula to convert Byte to Bit is: b = B × 8. For example, to convert 10 Bytes to Bits, you would multiply 10 by 8.
- What is a Byte?
- The Byte (symbol: B) is a recognized unit in the Metric (SI) measurement framework, utilized within data applications for precision and standardized data representation.
- What is a Bit?
- The Bit (symbol: b) is a recognized unit in the Standard measurement framework, utilized within data applications for precision and standardized data representation.
- What are the common uses of Byte?
- The Byte is commonly used in data calculations, engineering and science, education.
- Is a byte always 8 bits?
- In modern practice yes, which is why standards bodies say "octet" when the distinction matters.
Related Data Conversions
Cite this page
UnitConvertLab. (2026). Byte to Bit converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/byte-to-bit