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Bytes with Decimal and Binary Prefixes

One billion bytes equals 1 GB or 1,000 MB in decimal units. Select compatible units to convert or solve from an entered equivalent quantity.

Formula & worked example
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How to use this calculator

Enter the known values in the units shown. Results update as you type.
Where results are editable, change one to solve backwards. Lock a value to hold it fixed.
Use the worked example to check the method. Reset restores the starting fields.

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Formula and method

One billion bytes equals 1 GB or 1,000 MB in decimal units.

Decimal kB = 1,000 B; MB = 1,000,000 B; binary prefixes use powers of 1,024.

Worked example

Enter these known values and leave the other values blank.

Value in bytes: 1000000000 B

Value in kilobytes: 1000000 kB
Value in megabytes: 1000 MB
Value in gigabytes: 1 GB
Value in other multiples of the byte: 0.001 TB

Assumptions and limitations

Arithmetic uses 64 significant decimal digits. Displayed values are rounded separately.
Each field represents the same quantity in its selected units; enter one known value to calculate its equivalents.
Decimal kB, MB, GB and TB use powers of 1,000. Binary KiB, MiB and larger IEC prefixes use powers of 1,024 where offered by the selector.
The converter transforms numeric quantities. Actual stored byte counts are whole numbers; signed inputs can represent changes in storage.

Common questions

Are a GB and a GiB equal?

No. A decimal gigabyte is 1,000,000,000 bytes, while a gibibyte is 1,073,741,824 bytes.

References

The calculation equations, inverse formulas, units, and input rules were imported from this source. Bookify provides the interface and equation solver.

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