Byte to Bit Converter
Enter the value that you want to convert byte (B) to bit (b) or bit to byte.Also written as B to B conversion.
1 byte = 8.0000000 bit
Formula: bit = byte value × 8.0000000
B to B — byte to bit
10 byte = 80.00000 bit
Popular Data Storage Converters:
How Byte Relates to Bit
Understanding Byte
Byte (B) is a unit of data storage measurement. 1 byte is equal to 8.0000000 bit.
Understanding Bit
Bit (b) is a unit of data storage measurement. 1 bit is equal to 0.1250000 byte.
Data Storage Units Explained
Data storage has two competing standards: binary (1 KB = 1024 bytes) used by operating systems and memory manufacturers, and decimal (1 KB = 1000 bytes) used by hard drive and SSD manufacturers. This discrepancy causes confusion when a "500 GB" drive shows as "465 GB" in your OS. Cloud storage, bandwidth calculations, and file transfer estimates all require understanding both systems.
byte to bit metric conversion table
| 0.01 B | = | 0.08000 b |
| 0.1 B | = | 0.80000 b |
| 1 B | = | 8.00000 b |
| 2 B | = | 16.00000 b |
| 3 B | = | 24.00000 b |
| 4 B | = | 32.00000 b |
| 5 B | = | 40.00000 b |
| 6 B | = | 48.00000 b |
| 7 B | = | 56.00000 b |
| 8 B | = | 64.00000 b |
| 9 B | = | 72.00000 b |
| 10 B | = | 80.00000 b |
| 11 B | = | 88.00000 b |
| 12 B | = | 96.00000 b |
| 13 B | = | 104.00000 b |
| 14 B | = | 112.00000 b |
| 15 B | = | 120.00000 b |
| 16 B | = | 128.00000 b |
| 17 B | = | 136.00000 b |
| 18 B | = | 144.00000 b |
| 19 B | = | 152.00000 b |
| 20 B | = | 160.00000 b |
| 30 B | = | 240.00000 b |
| 40 B | = | 320.00000 b |
| 50 B | = | 400.00000 b |
| 60 B | = | 480.00000 b |
| 70 B | = | 560.00000 b |
| 80 B | = | 640.00000 b |
| 90 B | = | 720.00000 b |
| 100 B | = | 800.00000 b |
| 200 B | = | 1600.00000 b |
| 300 B | = | 2400.00000 b |
| 400 B | = | 3200.00000 b |
| 500 B | = | 4000.00000 b |
| 600 B | = | 4800.00000 b |
| 700 B | = | 5600.00000 b |
| 800 B | = | 6400.00000 b |
| 900 B | = | 7200.00000 b |
| 1000 B | = | 8000.00000 b |
How to Convert B to B (Byte to Bit)?
We can convert byte to bit by using an example.
Example:
Convert 20 Byte to Bit?
We know 1 Byte = 8.0000000 bit; 1 Bit = 0.1250000 byte.
20 byte = ___b
20 × 8.0000000 = 160.00000 b (we know 1 byte = 8.0000000 bit)
Answer:
20 byte = 160.00000 bit
How to Convert Bytes to Bits: The Foundation of Digital Data
Every piece of digital information — from a single character to an entire movie — is ultimately stored as bits (binary digits). A byte, the basic addressable unit of computer memory, contains exactly 8 bits. Understanding this relationship is fundamental to networking, programming, and understanding how computers process information.
- Identify the number of bytes you want to convert.
- Multiply the byte value by 8.
- The result is the equivalent number of bits.
- Example: 5 bytes × 8 = 40 bits.
Bytes to Bits Conversion Chart
Quick reference for common byte-to-bit conversions encountered in computing and networking:
| Byte | Bit |
|---|---|
| 1 byte | 8 bits |
| 2 bytes | 16 bits |
| 4 bytes | 32 bits |
| 8 bytes | 64 bits |
| 16 bytes | 128 bits |
| 32 bytes | 256 bits |
| 64 bytes | 512 bits |
| 128 bytes | 1,024 bits |
Solved Examples: Bytes to Bits
Question 1: A network packet header is 20 bytes. How many bits is this?
Solution:
Bits = bytes × 8
= 20 × 8
= 160 bits
Answer: The TCP header is 160 bits — each bit position carries specific protocol information like source port, sequence number, and flags.
Question 2: An ASCII text file contains 256 bytes. Express this in bits.
Solution:
Bits = bytes × 8
= 256 × 8
= 2,048 bits
Answer: 256 bytes = 2,048 bits. Since each ASCII character uses 1 byte, this file holds 256 characters.
Question 3: A 128-bit AES encryption key is how many bytes?
Solution:
This is the reverse: bytes = bits ÷ 8
= 128 ÷ 8
= 16 bytes
Verification: 16 bytes × 8 = 128 bits ✓
Answer: A 128-bit AES key occupies 16 bytes of memory.
Test Your Knowledge: Bytes to Bits
Try solving these on your own to test your understanding:
- Convert 10 bytes to bits. (Answer: 80 bits)
- A MAC address is 6 bytes. How many bits? (Answer: 48 bits)
- How many bits in 1,024 bytes? (Answer: 8,192 bits)
- A 256-bit encryption key equals how many bytes? (Answer: 32 bytes)
- An Ethernet frame minimum size is 64 bytes. Express in bits. (Answer: 512 bits)
Why 8 Bits Per Byte? A Historical Perspective
Early computers used various byte sizes (6, 7, or 9 bits). The 8-bit byte became standard with the IBM System/360 in 1964 because it could encode 256 different values (2⁸ = 256), enough to represent all ASCII characters, digits, and control codes. This also made it convenient for hexadecimal notation, where each byte is exactly two hex digits.
Bits vs Bytes in Internet Speed
Internet service providers quote speeds in megabits per second (Mbps), not megabytes per second (MB/s). A "100 Mbps" connection delivers about 12.5 MB/s maximum throughput (100 ÷ 8 = 12.5). This is not deceptive marketing — networking has historically measured bandwidth in bits because serial communication sends data one bit at a time over a wire.
Key Takeaways
- 1 byte = 8 bits, always — this is a universal standard.
- Multiply bytes by 8 to get bits; divide bits by 8 to get bytes.
- Internet speeds use bits (Mbps); file sizes use bytes (MB).
- The 8-bit byte standard dates back to the IBM System/360 (1964).
- Common data structures: 32-bit integers (4 bytes), 64-bit pointers (8 bytes).
Byte to Bit Conversion Formula
bit = byte × 8.0000000
1 byte = 8.0000000 bit
1 bit = 0.1250000 byte
Reverse: byte = bit × 0.1250000
Frequently Asked Questions
How many bit are in 1 byte?
There are 8.0000000 bit in 1 byte. To convert byte to bit, multiply the value by 8.0000000.
How do I convert byte to bit?
Multiply your byte value by 8.0000000 to get the equivalent in bit. For example, 5 byte = 5 × 8.0000000 = 40.00000 bit.
How do I convert bit to byte?
Multiply your bit value by 0.1250000 to get the equivalent in byte. Alternatively, divide by 8.0000000.
What is 10 byte in bit?
10 byte is equal to 80.00000 bit.
What is 100 byte in bit?
100 byte is equal to 800.00000 bit.