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Gigabyte to Byte Converter

Type a value — the answer appears instantly. 1 GB = 1,000,000,000 B.

Reviewed by the OmniCalc teamMethod verified 2026-07-01

From unit

To unit
Result

1,000,000,000 bytes

= 1,000 MB= 0.001 TB

equals 1,000,000,000 bytes

Formula: B = GB × 1000000000

Gigabyte to Byte formula

B = GB × 1000000000

Convert 5 gigabytes to bytes

  1. Start with 5 gigabytes.
  2. Multiply by the conversion factor: 5 × 1,000,000,000 = 5,000,000,000.
  3. So 5 GB = 5,000,000,000 B.

Gigabyte to Byte conversion table

Gigabyte to Byte conversion table
Gigabytes (GB)Bytes (B)
0.01 GB10,000,000 B
0.1 GB100,000,000 B
0.25 GB250,000,000 B
0.5 GB500,000,000 B
1 GB1,000,000,000 B
2 GB2,000,000,000 B
3 GB3,000,000,000 B
4 GB4,000,000,000 B
5 GB5,000,000,000 B
6 GB6,000,000,000 B
7 GB7,000,000,000 B
8 GB8,000,000,000 B
9 GB9,000,000,000 B
10 GB10,000,000,000 B
15 GB15,000,000,000 B
20 GB20,000,000,000 B
25 GB25,000,000,000 B
30 GB30,000,000,000 B
40 GB40,000,000,000 B
50 GB50,000,000,000 B
75 GB75,000,000,000 B
100 GB100,000,000,000 B
250 GB250,000,000,000 B
500 GB500,000,000,000 B
1,000 GB1,000,000,000,000 B
5,000 GB5,000,000,000,000 B
10,000 GB10,000,000,000,000 B

Unit definitions

What is a gigabyte?

The gigabyte (decimal) is one billion bytes (1000³) under the SI convention that drive and phone makers use. Movies, apps, and storage capacities are usually quoted in gigabytes. It is smaller than a gibibyte (1,073,741,824 bytes).

What is a byte?

The byte is eight bits, the basic addressable unit of computer memory and storage. One byte can represent a single text character in older encodings. It is the reference unit from which kilobytes, megabytes, and their binary counterparts are built.

Frequently asked questions

How many bytes are in one gigabyte?

One gigabyte equals 1,000,000,000 bytes (1 GB = 1,000,000,000 B).

How do I convert gigabytes to bytes?

Multiply the value in gigabytes by 1,000,000,000. For example, 10 GB × 1,000,000,000 = 10,000,000,000 B.

Which is bigger — a gigabyte or a byte?

A gigabyte is bigger: one gigabyte contains 1,000,000,000 bytes.

Is this gigabyte to byte converter free?

Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.

Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.