Data Storage Converter
Convert between bytes, KB, MB, GB, TB, PB and their binary equivalents (KiB, MiB, GiB, TiB).
The Data Storage Converter lets you convert between decimal (SI) and binary (IEC) data storage units with full precision. Understanding the difference between these two systems is important: storage manufacturers and networking standards use decimal units where 1 KB equals 1,000 bytes, while operating systems and memory specifications often use binary units where 1 KiB equals 1,024 bytes.
This distinction explains why a hard drive advertised as 1 TB (1,000,000,000,000 bytes) shows as roughly 931 GiB in your operating system. The converter supports both systems and allows cross-system conversion, making it easy to understand exactly how much storage you are working with regardless of which convention is being used.
The tool supports ten units across both systems: bytes, kilobytes (KB), megabytes (MB), gigabytes (GB), terabytes (TB), and petabytes (PB) on the decimal side, plus kibibytes (KiB), mebibytes (MiB), gibibytes (GiB), and tebibytes (TiB) on the binary side. Decimal units use powers of 1,000 while binary units use powers of 1,024, following the IEC 80000-13 standard.
All calculations are performed entirely in your browser using JavaScript. No data is sent to any server. Results are displayed with up to six decimal places, with trailing zeros removed for clean output.
This distinction explains why a hard drive advertised as 1 TB (1,000,000,000,000 bytes) shows as roughly 931 GiB in your operating system. The converter supports both systems and allows cross-system conversion, making it easy to understand exactly how much storage you are working with regardless of which convention is being used.
The tool supports ten units across both systems: bytes, kilobytes (KB), megabytes (MB), gigabytes (GB), terabytes (TB), and petabytes (PB) on the decimal side, plus kibibytes (KiB), mebibytes (MiB), gibibytes (GiB), and tebibytes (TiB) on the binary side. Decimal units use powers of 1,000 while binary units use powers of 1,024, following the IEC 80000-13 standard.
All calculations are performed entirely in your browser using JavaScript. No data is sent to any server. Results are displayed with up to six decimal places, with trailing zeros removed for clean output.
Converter
Results
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How to Use
- Enter the storage value you want to convert.
- Select the unit you are converting from.
- Select the unit you want to convert to.
- Click Calculate to see the converted storage size.
FAQ
What is the difference between KB and KiB?
KB (kilobyte) equals 1,000 bytes using the decimal/SI standard. KiB (kibibyte) equals 1,024 bytes using the binary/IEC standard. The difference grows larger with bigger units: 1 TB is about 0.909 TiB.
Why does my hard drive show less space than advertised?
Drive manufacturers use decimal units (1 TB = 1,000,000,000,000 bytes) while operating systems often display binary units (1 TiB = 1,099,511,627,776 bytes). This makes the same drive appear smaller in your OS.
Is my data safe when using this tool?
Yes. All calculations run entirely in your browser using JavaScript. No data is sent to any server, so your inputs remain completely private.
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