Byte to Bit Converter (B to bit)

1 byte equals 8 bits — multiply the number of bytes by 8 to convert. The byte is the standard 8-bit grouping used to encode a single character or value, which is why this is one of the cleanest conversions in computing.

The formula

Multiply bytes by the exact factor 8:

bits = bytes × 8

For example, 256 bytes × 8 = 2048 bits. To reverse it, divide by 8 (or multiply by 0.125).

Conversion table

How to convert online

1. Type the number of bytes into the first box.
2. Read the bit result instantly in the second box.
3. Enter a bit value instead to convert back to bytes — it works both ways.

Use the Byte to Bit Converter — free and instant in your browser.

Where this conversion is used

File sizes and memory are measured in bytes, while protocols, checksums and transfer rates are often specified in bits. Converting bytes to bits is essential when you calculate how many bits a packet carries, size a data field at the bit level, or reconcile a stored byte count against a bit-based spec.

Scaling and accuracy

Because the factor is a clean 8, mental math is quick: multiply by 8 by doubling three times. So 16 bytes = 128 bits, 64 bytes = 512 bits, and 128 bytes = 1,024 bits. This is why a kilobyte (1,000 bytes) equals 8,000 bits and a megabyte equals 8,000,000 bits. The conversion is exact and never rounds, which makes it the foundation for every larger data-rate calculation — whenever a spec mixes bytes and bits, this factor of 8 is the bridge you need to reconcile the two.

FAQ

How many bits are in a byte?

One byte equals 8 bits. Multiply bytes by 8 — for example, 10 bytes = 80 bits.

Is a byte always 8 bits?

In modern computing, yes — the 8-bit byte (octet) is universal, so 1 byte = 8 bits everywhere this converter is used.

How do I convert bits back to bytes?

Divide by 8, or multiply by 0.125. For instance, 4,000 bits ÷ 8 = 500 bytes.

Is the conversion exact?

Yes. The factor of 8 is exact, so results never need rounding.

Related converters

• Bit to Byte Converter
• Byte to Kilobyte Converter
• Byte to Megabyte Converter
• Byte to Gigabyte Converter

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