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Gigabytes (GB) to Bytes

Type a value in Gigabytes (GB) and get the result in Bytes, calculated exactly.

1 GB = 1,000,000,000 B Data storage converter

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Precision

Exact factorThis result is exact.

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Formula

B = GB × 1,000,000,000

To convert Gigabytes (GB) to Bytes, multiply the value by 1,000,000,000.

Worked examples

1 GB × 1,000,000,000 = 1,000,000,000 B
100 GB × 1,000,000,000 = 100,000,000,000 B
50 GB × 1,000,000,000 = 50,000,000,000 B

This factor is exact by definition.

Conversion table

Gigabytes (GB) to Bytes
Gigabytes (GB)	Bytes (B)
1	1,000,000,000
2	2,000,000,000
3	3,000,000,000
4	4,000,000,000
5	5,000,000,000
6	6,000,000,000
7	7,000,000,000
8	8,000,000,000
9	9,000,000,000
10	10,000,000,000
15	15,000,000,000
20	20,000,000,000
25	25,000,000,000
30	30,000,000,000
40	40,000,000,000
50	50,000,000,000
60	60,000,000,000
70	70,000,000,000
75	75,000,000,000
80	80,000,000,000
90	90,000,000,000
100	100,000,000,000

Values marked ≈ are rounded; the rest are exact.

Reverse table: Bytes to Gigabytes (GB)

Bytes to Gigabytes (GB)
Bytes (B)	Gigabytes (GB)
1	1 × 10⁻⁹
2	2 × 10⁻⁹
3	3 × 10⁻⁹
4	4 × 10⁻⁹
5	5 × 10⁻⁹
6	6 × 10⁻⁹
7	7 × 10⁻⁹
8	8 × 10⁻⁹
9	9 × 10⁻⁹
10	1 × 10⁻⁸
15	1.5 × 10⁻⁸
20	2 × 10⁻⁸
25	2.5 × 10⁻⁸
30	3 × 10⁻⁸
40	4 × 10⁻⁸
50	5 × 10⁻⁸
60	6 × 10⁻⁸
70	7 × 10⁻⁸
75	7.5 × 10⁻⁸
80	8 × 10⁻⁸
90	9 × 10⁻⁸
100	0.0000001

Convert Bytes to Gigabytes (GB)

Unit definitions

Gigabytes (GB) GB: Exactly 1 000 000 000 bytes (decimal).
Bytes B: Exactly 8 bits.

Questions people ask

Gigabytes (GB) to Bytes: what is the conversion factor?

One GB is 1,000,000,000 B.

How do I convert Gigabytes (GB) to Bytes?

Use the formula above. For example, 100 GB = 100,000,000,000 B.

Is the conversion exact?

Yes. Both units have exact definitions, so the factor is exact; a result is only rounded when its decimals never end.

Factors checked 19 October 2026.