Marks Calc

bytes to bits

Convert byte to bit — instant, free, with the formula shown.

1 B=8 b

How to convert byte to bit

To convert byte to bit, multiply by 8:

b = B × 8

For example, 10 B × 8 = 80 b.

B to b conversion table

bytes (B)bits (b)
1 B8 b
2 B16 b
5 B40 b
10 B80 b
25 B200 b
50 B400 b
100 B800 b
250 B2000 b
500 B4000 b
1000 B8000 b
Reverse: Bit to Byte

Other byte conversions

Convert to bit from another unit

B to b — frequently asked

How many bits are in 1 byte?

1 byte = 8 bits (B × 8 = b).

What is the formula to convert byte to bit?

Multiply your byte value by 8 to get bit.

How do I convert 10 bytes to bits?

10 B = 80 b. For 100 B the answer is 800 b. Use the calculator on this page for any other value.

When to convert byte to bit

1Cloud storage planning (GB ↔ TB)
2Network bandwidth (bits per second)
3Memory and RAM (binary GiB)
4File transfer estimates

Data Storage conversion — common questions

Why does my hard drive show less space than advertised?

Drive manufacturers use decimal units (1 TB = 1,000 GB = 10¹² bytes), but operating systems often display binary units (1 TiB = 1,024 GiB ≈ 1.0995 TB). A '1 TB' drive shows as ~931 GiB in Windows.

What's the difference between Mb and MB?

Mb is megabits (lowercase b = bit), MB is megabytes (uppercase B = byte). 1 MB = 8 Mb. Network speeds are typically in Mbps (megabits/s), file sizes in MB.

Are KB and KiB the same?

No. KB = 1,000 bytes (decimal). KiB = 1,024 bytes (binary). The 'i' is the IEC prefix for binary.

See all data storage converters