4000 Hz to kHz
4000 Hz = 4 kHz
4000 hertz equals 4 kilohertz.
How to convert 4000 Hz to kHz
Use the formula kHz = Hz ÷ 1000:
kHz = 4000 ÷ 1000kHz = 4
So 4000 Hz = 4 kHz.
Rounded values and quick estimate
- Rounded to a whole number: 4 kHz
- Rounded to one decimal place: 4 kHz
- Conversion factor: 1 hertz = 0.001 kilohertz
This conversion is exact, so there is no need to estimate: just divide by 1,000.
4000 Hz in other units
- Kilohertz
- 4 kHz
- Megahertz
- 0.004 MHz
- Gigahertz
- 0.000004 GHz
4000 Hz and nearby values
| Hertz | Kilohertz |
|---|---|
| 3996 Hz | 4 kHz |
| 3997 Hz | 4 kHz |
| 3998 Hz | 4 kHz |
| 3999 Hz | 4 kHz |
| 4000 Hz | 4 kHz |
| 4001 Hz | 4 kHz |
| 4002 Hz | 4 kHz |
| 4003 Hz | 4 kHz |
| 4004 Hz | 4 kHz |
About hertz and kilohertz
A hertz is one cycle per second — the unit of frequency for sound, radio and electricity.
A kilohertz is 1,000 hertz. AM radio and audio sample rates are given in kHz.
Related conversions
Frequently asked questions
What is 4000 Hz in kHz?
4000 hertz is 4 kilohertz (4000 Hz = 4 kHz).
How do you convert 4000 Hz to kHz?
Apply kHz = Hz ÷ 1000: kHz = 4000 ÷ 1000, kHz = 4.
How many hertz is 4 kHz?
4 kHz is about 4000 hertz.