Digital storage units like kilobytes, megabytes, and gigabytes can be confusing to compare — the Kb Calculator converts any value between bits, bytes, KB, MB, GB, and TB in seconds. Enter your Value to Convert, select your Convert From and Convert To units, and choose between Decimal (Base 10) or Binary (Base 2) calculation to get the Converted Value, along with the conversion factor and bytes equivalent.
Converted Value
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Conversion Factor
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Bytes Equivalent
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In decimal (SI) units, 1 megabyte equals 1,000 kilobytes. In binary units, 1 megabyte equals 1,024 kilobytes. The difference depends on whether you use base 10 or base 2 calculations.
Decimal (SI) uses base 10 with multipliers of 1000 (1 KB = 1000 bytes), while binary uses base 2 with multipliers of 1024 (1 KB = 1024 bytes). Binary is commonly used in computer systems.
In decimal notation, 1 kilobyte equals 1,000 bytes. In binary notation, 1 kilobyte equals 1,024 bytes. Most computer systems use the binary definition.
A gigabyte is much larger than a kilobyte. In decimal, 1 GB = 1,000,000 KB. In binary, 1 GB = 1,048,576 KB. That's roughly 1 million times larger.
Use decimal for storage device marketing (hard drives, SSDs) as manufacturers typically use SI units. Use binary for computer memory and file system calculations as operating systems use binary.
For decimal: multiply TB by 1,000,000,000. For binary: multiply TB by 1,073,741,824. A terabyte contains either 1 trillion or about 1.07 trillion kilobytes respectively.