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    Bits to Bytes

    Convert Bits to Bytes

    "Bits to Bytes" Calculator

    Convert
    Bits to Bytes

    How to convert bits to bytes

    Worked example: 8 bits = 1 byte

    bitB051000.518 bits1 byte

    8 bits ÷ 8 = 1 byte

    Rule: bytes = bits ÷ 8 — exact: 1 B = 8 bits.
    Most asked values
    BitsBytes
    8 bits1 byte
    16 bits2 bytes
    32 bits4 bytes
    64 bits8 bytes
    128 bits16 bytes
    256 bits32 bytes
    1,024 bits128 bytes

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    FAQ

    How many bits are in one byte?

    One byte holds 8 bits. The eight-bit byte became the de facto standard with the IBM System/360 in 1964 and is fixed by the IEC 80000-13 standard, which uses the name "octet" whenever the width has to be unambiguous.

    What is the formula to convert bits to bytes?

    Divide the number of bits by 8: bytes = bits ÷ 8. For example, 8 bits ÷ 8 = 1 byte and 1,000 bits ÷ 8 = 125 bytes. The reverse conversion multiplies bytes by 8.

    Why does a 100 Mbit/s connection give only about 12.5 MB/s?

    Link speed is quoted in bits per second (lowercase b, as in Mbit/s), while download managers show bytes per second (uppercase B, as in MB/s), so the figure has to be divided by 8: 100 Mbit/s ÷ 8 = 12.5 MB/s. Mixing up "Mb" and "MB" is the most common mistake in this conversion.