Bytes to Gigabits
Type a value in either box to convert between bytes and gigabits. The factor is 8e-09.
| Bytes | Gigabits |
|---|---|
| 1 B | 8e-09 Gb |
| 2 B | 1.6e-08 Gb |
| 3 B | 2.4e-08 Gb |
| 5 B | 4e-08 Gb |
| 10 B | 8e-08 Gb |
| 25 B | 2e-07 Gb |
| 50 B | 4e-07 Gb |
| 100 B | 8e-07 Gb |
How to use
- Enter a value in the Bytes field.
- The Gigabits figure appears immediately — no button to press.
- Typing in the Gigabits field converts back to Bytes the same way.
- Use the reference table for the values that come up most often.
Bytes to Gigabits formula
To convert bytes to gigabits, multiply by 8e-09.
Gb = B × 8e-09
Why this factor: the byte and the gigabit 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 Gigabits to Bytes converter, which is the same calculation reversed.
Worked example
Start with 500 B. Multiply by 8e-09 to get 4e-06 Gb.
500 B × 8e-09 = 4e-06 Gb
The converter above does this for any value you type, in either direction.
What is a byte?
A byte is eight bits — historically the space for one text character, and the standard unit of file size.
Definition: Exactly 8 bits.
Where it is used: File and storage sizes, memory capacity, and data quotas.
What is a gigabit?
A gigabit is one billion bits, the unit of modern high-speed networking.
Definition: Exactly 1,000,000,000 bits, so exactly 125,000,000 bytes.
Where it is used: Gigabit Ethernet, fiber broadband tiers, and data-centre interconnects.
Bytes vs Gigabits
The byte and the gigabit 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 gigabits are in a byte?
One byte equals 8e-09 gigabits.
What is the formula to convert bytes to gigabits?
Multiply the number of bytes by 8e-09. To reverse it, divide by 8e-09 instead.
How do I convert gigabits back to bytes?
Divide by 8e-09, which is the same as multiplying by 125000000.
How many gigabits are in 10 bytes?
10 B works out to 8e-08 Gb.
How is the byte defined?
Exactly 8 bits.