A bit (b) is a binary digit, while a byte (B) contains 8 bits. Use this calculator to convert bits to bytes by dividing by 8, or convert bytes to bits by multiplying by 8.
How to Convert Bits to Bytes
To convert bits to bytes, divide the number of bits by 8 because one byte contains 8 bits.
Bits to bytes formula:
Bytes = Bits ÷ 8
Example: Convert 64 Bits to Bytes
Start with the formula:
Bytes = Bits ÷ 8
Substitute 64 bits:
64 ÷ 8 = 8
Answer: 64 bits = 8 bytes.
How to Convert Bytes to Bits
To convert bytes to bits, multiply the number of bytes by 8.
Bytes to bits formula:
Bits = Bytes × 8
Example: Convert 10 Bytes to Bits
Use the reverse formula:
Bits = Bytes × 8
Substitute 10 bytes:
10 × 8 = 80
Answer: 10 bytes = 80 bits.
Bits to Bytes Conversion Table
Use this quick reference table for common bit-to-byte values.
| Bits (b) | Bytes (B) |
|---|---|
| 1 bit | 0.125 bytes |
| 2 bits | 0.25 bytes |
| 4 bits | 0.5 bytes |
| 8 bits | 1 byte |
| 16 bits | 2 bytes |
| 32 bits | 4 bytes |
| 64 bits | 8 bytes |
| 128 bits | 16 bytes |
| 256 bits | 32 bytes |
| 512 bits | 64 bytes |
| 1,024 bits | 128 bytes |
| 2,048 bits | 256 bytes |
| 4,096 bits | 512 bytes |
| 8,192 bits | 1,024 bytes |
Bit vs Byte: What Is the Difference?
A bit is the smallest basic unit of binary information and can have a value of 0 or 1. Its standard symbol is lowercase b.
A byte is a unit made of 8 bits in modern computing and data measurement. Its symbol is uppercase B. This capitalization matters: b and B represent different units.
Remember: 1 B = 8 b. For example, 100 Mb means 100 megabits, while 100 MB means 100 megabytes.
Common Bit and Byte Mistakes
- Confusing b and B: lowercase b means bits; uppercase B means bytes.
- Multiplying in the wrong direction: bits to bytes requires division by 8, while bytes to bits requires multiplication by 8.
- Mixing base units with larger units: bit/byte conversion is different from KB, MB, GB, KiB, MiB, or GiB conversion.
- Rounding too early: some bit values convert to fractional bytes, so keep enough precision until the final result.
How to Verify the Answer
Reverse the calculation. If 64 bits ÷ 8 = 8 bytes, multiply the answer by 8: 8 × 8 = 64 bits. Because the reverse calculation returns the original value, the conversion is verified.
For broader data-size conversions, use our digital units converters, including the KB ↔ MB converter and MB ↔ GB converter.
Frequently Asked Questions
One byte contains 8 bits. Therefore, 1 B = 8 b.
One bit equals 0.125 bytes because 1 ÷ 8 = 0.125.
Divide the number of bits by 8. For example, 128 bits ÷ 8 = 16 bytes.
Multiply the number of bytes by 8. For example, 16 bytes × 8 = 128 bits.
Lowercase b represents a bit, while uppercase B represents a byte. Since one byte equals 8 bits, the distinction is important when reading storage sizes and data rates.
In modern data measurement, a byte normally contains 8 bits. The term octet specifically means a group of exactly 8 bits and is useful when that size needs to be stated unambiguously.
Calculation Methodology
This converter uses the exact relationship 1 byte = 8 bits. Bits-to-bytes results are calculated by dividing by 8, while bytes-to-bits results are calculated by multiplying by 8.
The converter displays practical precision for ordinary numeric inputs and uses scientific notation when values become extremely small or large.
Related Digital Unit Converters
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