Data & storage

Just how much data is 256 gigabytes?

Devices

256 GB

2.56 × 10¹¹ Bbytes
238.42 GiBgibibytes
0.256 TBterabytes
Linear measure
BYTES OF DATA256 GB128 GB
01
256 gigabytes256 GBData · definition
02
128 GB phone128 GBData · example
Bar length represents bytes. The physical sizes of devices are schematic; encoding and compression affect file sizes.

A little perspective

256 gigabytes has about 2 times the data of 128 GB phone.

Measurements, assumptions & sources +

256 gigabytes

Decimal kB, MB and GB use powers of 1,000. KiB, MiB and GiB use powers of 1,024. The content of a file depends on encoding and compression.

NIST — SI conversion factors

128 GB phone

128 billion advertised bytes. Operating-system and formatting space are not deducted.

Defined examples — our methodology

The marked data is calibrated. Unmeasured illustration details are representative.

Measurement details

Why these numbers?

The visual compares data with data. The records below preserve each value’s basis and caveats.

256 gigabytes

256 GB

Data · definition

Decimal kB, MB and GB use powers of 1,000. KiB, MiB and GiB use powers of 1,024. The content of a file depends on encoding and compression.

128 GB phone

128 GB

Data · example

128 billion advertised bytes. Operating-system and formatting space are not deducted.

Comparing
Data ↔ Data
Relative size
256 gigabytes is larger on this measurement by a factor of about 2. 256 gigabytes's selected measurement is approximately 100% greater than 128 GB phone's.

How to read the visual

The labelled spans and stored measurements determine the scale; unmeasured illustration details do not.

  • 128 GB phone is labelled example; treat the displayed value as a comparison anchor rather than false precision.

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