Convert Kilohertz to Gigahertz
Kilohertz to gigahertz is the conversion that spans the biggest jump — from the audio and AM-radio range all the way up to the gigahertz band. One kilohertz is exactly 0.000001 gigahertz, so the number gets far smaller when you switch from kilohertz to gigahertz.
Kilohertz to Gigahertz conversion table
| Kilohertz (kHz) | Gigahertz (GHz) |
|---|---|
| 1 | 0.000001 |
| 2 | 0.000002 |
| 3 | 0.000003 |
| 5 | 0.000005 |
| 10 | 0.00001 |
| 20 | 0.00002 |
| 50 | 0.00005 |
| 100 | 0.0001 |
| 500 | 0.0005 |
| 1,000 | 0.001 |
The formula
To convert kilohertz to gigahertz, multiply the number of kilohertz by 0.000001 (which is exactly 1/1,000,000):
gigahertz = kilohertz × 0.000001
A worked example
Say you have 2,500,000 kHz and want it in gigahertz:
2,500,000 × 0.000001 = 2.5 GHz
So 2,500,000 kilohertz is exactly 2.5 gigahertz.
Why the number is exact
The "kilo" prefix means exactly one thousand and the "giga" prefix means exactly one billion, so a gigahertz is exactly 1,000,000 kilohertz. That makes one kilohertz exactly 0.000001 gigahertz — two decade steps by an exact power of 1000, not a rounded factor. Every kilohertz-to-gigahertz conversion is exact.
When you'll use it
Bridging a frequency all the way from the kilohertz range up to the gigahertz band, and comparing values across specs that use very different prefixes so they sit on one scale.
Frequently asked questions
How many gigahertz are in a kilohertz?
Exactly 0.000001 gigahertz, which is one millionth. Since a gigahertz is one million kilohertz, one kilohertz is 1/1,000,000 of a gigahertz — a fixed, exact number.
How many kilohertz make one gigahertz?
Exactly 1,000,000 kilohertz. The 'giga' prefix is one million times the 'kilo' prefix, so a gigahertz is exactly one million kilohertz.
Is the kilohertz to gigahertz conversion exact?
Yes. One kilohertz is exactly 0.000001 gigahertz by the definitions of the 'kilo' and 'giga' prefixes, so nothing is rounded away.