Kilobyte [KB] to Kilobit [Kb] Converter

Quick Reference

1 Kilobyte (KB) = 8 Kilobit (Kb)

1 Kilobit (Kb) = 0.125 Kilobyte (KB)

How to Convert Kilobyte to Kilobit

1 KB = 8 Kb
1 Kb = 0.125 KB

To convert Kilobyte to Kilobit, multiply the value by 8. To convert Kilobit back to Kilobyte, divide by 8.

Example: convert 10 KB to Kb:
10 KB = 10 x 8 = 80 Kb

↔ Convert Kilobit to Kilobyte

Kilobyte

Definition: A kilobyte (KB) is a unit of data storage equal to 1,000 bytes. It's a multiple of the byte, which is the fundamental unit of information in computing.

History/origin: The kilobyte is based on the byte, which is derived from the bit, and is a unit that makes use of SI (International System of Units) prefixes. The term byte was coined in 1956 by Werner Buchholz. In 1998, the International Electrotechnical Commission defined new prefixes for the byte to be used in addition to their SI (International System of Units) counterparts, with the intent that the SI prefixes would be used when referencing 1000 bytes. The new prefixes would be used when referencing multiples of 1024 bytes (210), which is the binary definition of bytes used in information technology.

Current use: Kilobytes are commonly used for smaller files like text documents. Bytes are widely used when referencing data storage, particularly storage media such as hard drives, flash-based storage, and DVDs, though these are more often presented in terms of larger multiples of bytes such as megabytes or gigabytes.

Kilobit

Definition: A kilobit (symbol: Kb or kbit) is a unit of information equal to 1000 bits. It is a multiple of the bit, which is the fundamental unit of data in computing and telecommunications.

History/origin: The kilobit is derived from the bit and utilizes the SI prefix 'kilo-' to denote a multiple of 1000. The term 'bit' was coined by Claude Shannon in the mid-20th century, while the use of prefixes like 'kilo-' for binary quantities became common in the early days of computing.

Current use: Kilobits are used to measure data transfer rates (e.g., modem speeds), storage capacities (for very small files), and data sizes. They are less commonly used today as larger units like megabits and gigabits have become more prevalent.

Kilobyte to Kilobit Conversion Table

Kilobyte [KB]	Kilobit [Kb]
1 KB	8 Kb
2 KB	16 Kb
5 KB	40 Kb
10 KB	80 Kb
20 KB	160 Kb
50 KB	400 Kb
100 KB	800 Kb
200 KB	1600 Kb
500 KB	4000 Kb
1000 KB	8000 Kb

Common pairs of Digital

Bit

Bit to Kilobit Bit to Megabit Bit to Gigabit Bit to Terabit Bit to Byte

Kilobit

Kilobit to Bit Kilobit to Megabit Kilobit to Gigabit Kilobit to Terabit Kilobit to Byte

Megabit

Megabit to Bit Megabit to Kilobit Megabit to Gigabit Megabit to Terabit Megabit to Byte

Gigabit

Gigabit to Bit Gigabit to Kilobit Gigabit to Megabit Gigabit to Terabit Gigabit to Byte

Terabit

Terabit to Bit Terabit to Kilobit Terabit to Megabit Terabit to Gigabit Terabit to Byte

Byte

Byte to Bit Byte to Kilobit Byte to Megabit Byte to Gigabit Byte to Terabit

Kilobyte

Kilobyte to Bit Kilobyte to Kilobit Kilobyte to Megabit Kilobyte to Gigabit Kilobyte to Terabit

Megabyte

Megabyte to Bit Megabyte to Kilobit Megabyte to Megabit Megabyte to Gigabit Megabyte to Terabit

Gigabyte

Gigabyte to Bit Gigabyte to Kilobit Gigabyte to Megabit Gigabyte to Gigabit Gigabyte to Terabit

Terabyte

Terabyte to Bit Terabyte to Kilobit Terabyte to Megabit Terabyte to Gigabit Terabyte to Terabit

Kilobyte [KB] to Kilobit [Kb] Converter

To convert Kilobyte to Kilobit, enter your value in the KB field above and the result in Kb will appear instantly. You can also use the conversion factor shown in the table on this page to calculate manually. The formula is always the same: multiply your KB value by the fixed conversion ratio to get the equivalent in Kb.

Our Kilobyte to Kilobit converter uses standardized conversion factors defined by international scientific and metrological organizations. All calculations are performed with full floating-point precision. You can also choose how many decimal places to display in the result, so you get exactly the level of detail you need.

Yes, absolutely. Simply swap the source and destination units in the converter — select Kb as your input unit and KB as your output unit. The same precision and standardized conversion factor applies in both directions.

Converting between Kilobyte and Kilobit comes up regularly in engineering, scientific research, construction, and everyday tasks that involve measurements from different unit systems. Our converter eliminates the risk of manual calculation errors and saves time whenever you need to switch between these two units.

Yes, the Kilobyte to Kilobit converter is completely free. No account or registration is required, and there are no usage limits. It works on any device — smartphones, tablets, and desktop computers — directly in your browser.

Kilobyte and Kilobit are both units used to measure the same physical quantity, but they belong to different measurement systems or represent different scales. The mathematical relationship between them is fixed and constant, which is what makes accurate conversion possible. Scroll up to see the exact conversion factor, formula, and a reference table for common values.

Kilobyte [KB] to Kilobit [Kb] Converter

Quick Reference

1 Kilobyte (KB) = 8 Kilobit (Kb)

1 Kilobit (Kb) = 0.125 Kilobyte (KB)

How to Convert Kilobyte to Kilobit

1 KB = 8 Kb
1 Kb = 0.125 KB

To convert Kilobyte to Kilobit, multiply the value by 8. To convert Kilobit back to Kilobyte, divide by 8.

Example: convert 10 KB to Kb:
10 KB = 10 x 8 = 80 Kb

↔ Convert Kilobit to Kilobyte

Kilobyte

Definition: A kilobyte (KB) is a unit of data storage equal to 1,000 bytes. It's a multiple of the byte, which is the fundamental unit of information in computing.

Kilobit

Definition: A kilobit (symbol: Kb or kbit) is a unit of information equal to 1000 bits. It is a multiple of the bit, which is the fundamental unit of data in computing and telecommunications.