Convert bytes to bits

1 B=8b

Use the converter below to change any bytes value into bits instantly — with formula, conversion table, and real-world examples.

You have

Equals

Conversion formula

Forward

bits = bytes × 8

Reverse

bytes = bits × 0.125

Example: 10 B × 8 = 80 b.

About both units

From

Byte

The byte equals 8 bits — the basic unit of file size and memory. One byte encodes one ASCII character. All file sizes and RAM capacities are quoted in bytes and their multiples (KB, MB, GB, TB).

Real-world: An ASCII character: 1 byte. A short text message: few hundred bytes. Uncompressed photo: few MB.

Read full byte reference →

Bit

The bit is the smallest unit of digital information — a single 0 or 1. Coined by John Tukey in 1946. Network speeds, modem rates and compression ratios are measured in bits; file sizes and memory in bytes (8 bits each).

Real-world: Home fibre: 100 Mbps = 100,000,000 bps. AES key: 256 bits. MP3 bit rate: 128–320 kbps.

Read full bit reference →

Byte to Bit conversion table

Common bytes to bits values for quick reference.

Byte (B)	Bit (b)
1 B	8 b
10 B	80 b
100 B	800 b
500 B	4,000 b
1,000 B	8,000 b
5,000 B	40,000 b
10,000 B	80,000 b
50,000 B	400,000 b
100,000 B	800,000 b
500,000 B	4,000,000 b

Tips & common mistakes

Quick tips

1 byte = 8 bits.
KB, MB, GB are 1000 or 1024 multiples of bytes — check context.
Use bytes (B) for storage; bits (b) for bandwidth.

Avoid these

Confusing byte (B) with bit (b).
Assuming 1 MB always equals 1,048,576 bytes — sometimes 1,000,000.
Mixing file size (bytes) with transfer speed (bits per second).

Frequently asked questions

How many bits in a byte?

One byte equals 8 bits.

How do I convert bytes to bits?

Multiply the byte value by 8 to get the equivalent in bits.

What is 100 bytes in bits?

100 bytes equals 800 bits.

Is a byte bigger than a bit?

Yes. 1 byte equals 8 bits, so one byte is larger.

How to convert bytes to bits without a calculator?

Multiply by 8 for a quick estimate; use a calculator for precise results.

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Convert bytes to bits

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