Gigabits to Kilobits
Type a value in either box to convert between gigabits and kilobits. The factor is 1e+06.
| Gigabits | Kilobits |
|---|---|
| 1 Gb | 1000000 Kb |
| 2 Gb | 2000000 Kb |
| 3 Gb | 3000000 Kb |
| 5 Gb | 5000000 Kb |
| 10 Gb | 10000000 Kb |
| 25 Gb | 25000000 Kb |
| 50 Gb | 50000000 Kb |
| 100 Gb | 100000000 Kb |
How to use
- Enter a value in the Gigabits field.
- The Kilobits figure appears immediately — no button to press.
- Typing in the Kilobits field converts back to Gigabits the same way.
- Use the reference table for the values that come up most often.
Gigabits to Kilobits formula
The factor from gigabits to kilobits is 1000000.
Kb = Gb × 1000000
Why this factor: the gigabit and the kilobit are both defined against the byte, so dividing one definition by the other gives 1000000 directly. Both definitions are set out in full below.
To go the other way, divide by 1000000 — or use the Kilobits to Gigabits converter, which is the same calculation reversed.
Worked example
Start with 500 Gb. Multiply by 1000000 to get 500000000 Kb.
500 Gb × 1000000 = 500000000 Kb
The converter above does this for any value you type, in either direction.
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.
What is a kilobit?
A kilobit is 1,000 bits, used almost exclusively for data rates.
Definition: Exactly 1,000 bits, so exactly 125 bytes.
Where it is used: Audio and video bitrates, and legacy connection speeds.
Gigabits vs Kilobits
The gigabit and the kilobit 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 kilobits are in a gigabit?
One gigabit equals 1000000 kilobits.
What is the formula to convert gigabits to kilobits?
Multiply the number of gigabits by 1000000. To reverse it, divide by 1000000 instead.
How do I convert kilobits back to gigabits?
Divide by 1000000, which is the same as multiplying by 1e-06.
How many kilobits are in 10 gigabits?
10 Gb works out to 10000000 Kb.
How is the gigabit defined?
Exactly 1,000,000,000 bits, so exactly 125,000,000 bytes.