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Convert Bytes to Gigabytes

One byte equals 9.31323 × 10⁻¹⁰ gigabytes. Type any value to convert bytes to gigabytes instantly — with a full reference table below.

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Convert Bytes to Gigabytes

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Formula

How to convert Bytes to Gigabytes

To convert bytes to gigabytes, multiply by 9.31323 × 10⁻¹⁰. One byte equals 9.31323 × 10⁻¹⁰ GB, and one gigabyte equals 1,073,741,824 B.

  1. Take the value in bytes — for example 3 B.
  2. Multiply by 9.31323 × 10⁻¹⁰ (the number of gigabytes in one byte).
  3. 3 × 9.31323 × 10⁻¹⁰ = 2.79397 × 10⁻⁹ GB.

Bytes to Gigabytes conversion table

BytesGigabytes
1 B9.31323 × 10⁻¹⁰ GB
2 B1.86265 × 10⁻⁹ GB
4 B3.72529 × 10⁻⁹ GB
5 B4.65661 × 10⁻⁹ GB
8 B7.45058 × 10⁻⁹ GB
10 B9.31323 × 10⁻⁹ GB
16 B1.49012 × 10⁻⁸ GB
20 B1.86265 × 10⁻⁸ GB
32 B2.98023 × 10⁻⁸ GB
50 B4.65661 × 10⁻⁸ GB
64 B5.96046 × 10⁻⁸ GB
100 B9.31323 × 10⁻⁸ GB
128 B1.19209 × 10⁻⁷ GB
256 B2.38419 × 10⁻⁷ GB
512 B4.76837 × 10⁻⁷ GB
1,024 B9.53674 × 10⁻⁷ GB
GigabytesBytes
1 GB1,073,741,824 B
2 GB2,147,483,648 B
4 GB4,294,967,296 B
5 GB5,368,709,120 B
8 GB8,589,934,592 B
10 GB10,737,418,240 B
16 GB17,179,869,184 B
20 GB21,474,836,480 B
32 GB34,359,738,368 B
50 GB53,687,091,200 B
64 GB68,719,476,736 B
100 GB107,374,182,400 B
128 GB137,438,953,472 B
256 GB274,877,906,944 B
512 GB549,755,813,888 B
1,024 GB1,099,511,627,776 B

About converting Bytes to Gigabytes

Bytes (B) and Gigabytes (GB) are both units of data storage. The exact factor is 1 B = 9.31323 × 10⁻¹⁰ GB, so multiply by 9.31323 × 10⁻¹⁰ to go from bytes to gigabytes (or divide to go back).

The conversion runs entirely in your browser. Need the reverse? Use the Gigabytes to Bytes converter, or the full unit converter for every unit at once.

Binary vs decimal: why your drive looks smaller

Windows and RAM reports count in powers of 1,024 (binary, sometimes written KiB/MiB/GiB); drive makers, macOS and mobile carriers count in powers of 1,000 (decimal). Same bytes, two answers:

BytesGigabytes (binary · Windows)Gigabytes (decimal · on the box)
1 B9.31323 × 10⁻¹⁰ GB1 × 10⁻⁹ GB
2 B1.86265 × 10⁻⁹ GB2 × 10⁻⁹ GB
4 B3.72529 × 10⁻⁹ GB4 × 10⁻⁹ GB
5 B4.65661 × 10⁻⁹ GB5 × 10⁻⁹ GB
8 B7.45058 × 10⁻⁹ GB8 × 10⁻⁹ GB
10 B9.31323 × 10⁻⁹ GB1 × 10⁻⁸ GB
16 B1.49012 × 10⁻⁸ GB1.6 × 10⁻⁸ GB
20 B1.86265 × 10⁻⁸ GB2 × 10⁻⁸ GB
32 B2.98023 × 10⁻⁸ GB3.2 × 10⁻⁸ GB
50 B4.65661 × 10⁻⁸ GB5 × 10⁻⁸ GB

Example: a “1 TB” drive holds 10¹² bytes, which Windows shows as about 931 GB.

Real-world data storage in bytes and gigabytes

ExampleBytesGigabytes
A page of plain text≈ 2,000 B≈ 0.0000018626 GB
A 4-minute MP3 at 128 kbps3,840,000 B0.00357628 GB
A CD734,003,200 B0.683594 GB
A single-layer DVD (4.7 GB)4,700,000,000 B4.377216 GB
A 50 GB dual-layer Blu-ray50,000,000,000 B46.56613 GB

“≈” marks typical values; the rest are defined or measured figures.

The units

Bytes (B)

8 bits — enough to store one Latin character.

Used for: File sizes.

Gigabytes (GB)

Here, 1,024 MB = 1,073,741,824 bytes (GiB). Decimal gigabyte = 1,000,000,000 bytes.

Used for: Phone storage, mobile data, RAM.

This page uses binary units (1 KB = 1,024 bytes), which is how Windows and most RAM reports count. Storage makers and macOS use decimal units (1 kB = 1,000 bytes), so both are shown below.

Frequently asked questions

5 answers
How many gigabytes are in one byte?
One byte equals 9.31323 × 10⁻¹⁰ gigabytes.
How do I convert bytes to gigabytes?
Multiply the number of bytes by 9.31323 × 10⁻¹⁰. For example, 10 bytes = 9.31323 × 10⁻⁹ gigabytes.
What is 5 bytes in gigabytes?
5 bytes is 4.65661 × 10⁻⁹ gigabytes.
Is a byte bigger than a gigabyte?
No. One byte is 9.31323 × 10⁻¹⁰ of a gigabyte — it takes 1,073,741,824 bytes to make one gigabyte.
How many gigabytes is a CD?
A CD is 0.683594 gigabytes (734,003,200 bytes).