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Data Storage Converter

Convert data sizes between bits, bytes, decimal SI kilobytes, and binary IEC KiB, MiB, GiB, TiB, and PiB.

Convert instantly
Enter a value and choose the units. Your answer updates as you type.

Result

0.125 Byte (B)

Quick reference
  • Bit (b)0.125 base units
  • Byte (B)1 base units
  • Kilobyte (KB, 1000 B)1000 base units
  • Megabyte (MB, 1000² B)1000000 base units
  • Gigabyte (GB, 1000³ B)1000000000 base units
  • Terabyte (TB, 1000⁴ B)1000000000000 base units
  • Petabyte (PB, 1000⁵ B)1000000000000000 base units

About the Data Storage Converter

Storage manufacturers generally use decimal SI prefixes: 1 GB is 1,000,000,000 bytes. Operating systems and memory tools often use binary IEC prefixes: 1 GiB is 1,073,741,824 bytes. This converter labels KB/MB/GB/TB and KiB/MiB/GiB/TiB separately so a capacity is never silently interpreted under the wrong standard.

Bits are useful for network rates, while bytes describe files and disks. Convert a value live—for example, 1 GB is 1,000,000,000 bytes while 1 GiB is 1,073,741,824 bytes—then use the Numbers Converter when you need to inspect the underlying integer in binary or hexadecimal. For duration estimates, the Time Converter can help put a file transfer into context.

Frequently asked questions

What is the difference between GB and GiB?

GB is decimal and equals 1,000,000,000 bytes; GiB is binary and equals 1,073,741,824 bytes.

How many bits are in a byte?

One byte contains exactly eight bits.

Why does a drive show less space than its label?

Manufacturers use decimal capacities while some operating systems display binary-sized values with familiar decimal labels, making the displayed number look smaller.

Take this calculation further

Browse the converters calculators collection for more tools in this subject.

For a related calculation, use Metric Prefixes Converter to convert values across all current SI metric prefixes from quecto and ronto through kilo, mega, yotta, ronna, and quetta. Alternatively, use Numbers Converter to convert arbitrarily large integer numbers between binary, octal, decimal, hexadecimal, and every base from 2 through 36.

For the underlying method, read Understanding Data Storage Units: Why Your Drive Shows Less Space.