💾 Data Size Converter
Enter an amount and a unit to see it expressed in bytes, KB, MB, GB, and TB using binary (base-1024) units — handy for file sizes, storage planning, and dataset volumes.
💾 Convert Storage Units
What is a Data Size Converter?
It translates a quantity of digital data between units — bytes up through kilobytes, megabytes, gigabytes, and terabytes — using the binary convention where each step multiplies by 1024. Enter a value in whichever unit you have and read off every equivalent at once, without juggling powers of two in your head.
Use it to size a dataset, estimate how many sensor logs fit on a device, compare file sizes, or reconcile the capacity printed on a drive with what your computer reports. Because storage vendors quote decimal units while systems use binary ones, this converter keeps you consistent when the numbers need to line up.
❓ Frequently Asked Questions
Does this converter use binary or decimal units?
It uses binary units, where each step is a factor of 1024: 1 KB = 1024 bytes, 1 MB = 1024 KB, 1 GB = 1024 MB, and 1 TB = 1024 GB. This matches how operating systems and memory report sizes. Storage manufacturers usually advertise decimal units (1 GB = 1,000,000,000 bytes), which is why a drive's stated capacity looks smaller once installed.
Why does my 1 TB drive show as about 0.9 TB?
Drive makers count a terabyte as 1,000,000,000,000 bytes (decimal), while your operating system counts it as 1024⁴ = 1,099,511,627,776 bytes (binary). The same number of bytes therefore reads as roughly 0.91 binary TB — no space is missing, the two systems just use different sized units.
What is the difference between a bit and a byte?
A byte is eight bits. This converter works in bytes and their multiples (KB, MB, GB, TB), which is how file and storage sizes are normally expressed. Network and connection speeds, by contrast, are usually quoted in bits per second, so a 100 Mbps link transfers about 12.5 MB per second.
How precise are the converted values?
The byte total is exact for whole inputs, and the larger units are rounded to four decimal places for readability. Because the conversion is a straightforward power-of-1024 scaling, the results are deterministic and reproducible — the same input always yields the same output.