Gigabytes to Bits
Type a value in either box to convert between gigabytes and bits. The factor is 8e+09.
| Gigabytes | Bits |
|---|---|
| 1 GB | 8000000000 bit |
| 2 GB | 16000000000 bit |
| 3 GB | 24000000000 bit |
| 5 GB | 40000000000 bit |
| 10 GB | 80000000000 bit |
| 25 GB | 200000000000 bit |
| 50 GB | 400000000000 bit |
| 100 GB | 800000000000 bit |
How to use
- Enter a value in the Gigabytes field.
- The Bits figure appears immediately — no button to press.
- Typing in the Bits field converts back to Gigabytes the same way.
- Use the reference table for the values that come up most often.
Gigabytes to Bits formula
The factor from gigabytes to bits is 8e+09.
bit = GB × 8e+09
Why this factor: the gigabyte and the bit are both defined against the byte, so dividing one definition by the other gives 8e+09 directly. Both definitions are set out in full below.
To go the other way, divide by 8e+09 — or use the Bits to Gigabytes converter, which is the same calculation reversed.
Worked example
Given 4 GB, multiplying by 8e+09 yields 32000000000 bit.
4 GB × 8e+09 = 32000000000 bit
The converter above does this for any value you type, in either direction.
What is a gigabyte?
A gigabyte is one billion bytes — the everyday unit of storage and memory capacity.
Definition: Exactly 1,000,000,000 bytes under SI prefixes. The binary gibibyte (GiB) is 1,073,741,824 bytes.
Where it is used: Phone and laptop storage, RAM capacity, video file sizes, and cloud storage plans.
What is a bit?
A bit is the smallest unit of digital information — a single binary digit, either 0 or 1.
Definition: One eighth of a byte. The name is a contraction of 'binary digit'.
Where it is used: Network and connection speeds, which are always quoted in bits per second.
Worth knowing: Lowercase 'b' is bits, uppercase 'B' is bytes. A 100 Mb/s connection delivers about 12.5 MB/s.
Gigabytes vs Bits
The gigabyte and the bit belong to the same family of units, so converting between them is usually a matter of shifting a decimal point or applying a small whole-number factor.
Frequently asked questions
How many bits are in a gigabyte?
One gigabyte equals 8e+09 bits.
What is the formula to convert gigabytes to bits?
Multiply the number of gigabytes by 8e+09. To reverse it, divide by 8e+09 instead.
How do I convert bits back to gigabytes?
Divide by 8e+09, which is the same as multiplying by 1.25e-10.
How many bits are in 10 gigabytes?
10 GB works out to 80000000000 bit.
Is there anything to watch out for with bits?
Lowercase 'b' is bits, uppercase 'B' is bytes. A 100 Mb/s connection delivers about 12.5 MB/s.
How is the gigabyte defined?
Exactly 1,000,000,000 bytes under SI prefixes. The binary gibibyte (GiB) is 1,073,741,824 bytes.