Khz to Hz Converter
Convert kilohertz to hertz easily. Free frequency converter for audio and radio.
Formula
Hz = kHz × 1000
Common Conversions
How to Convert kHz to Hz
1 kHz = 1,000 Hz. Multiply kHz by 1,000 (or move decimal three places right) to get Hz. So 44.1 kHz = 44,100 Hz. The 'kilo' prefix means 1,000.
Used when source data is in kHz but you need finer Hz resolution. Audio sample rates: CDs 44.1 kHz = 44,100 samples per second. Phone calls (narrow band): 8 kHz = 8,000 samples. Music studios often work at 48 kHz or 96 kHz for higher fidelity.
Common kHz to Hz
| kHz | Hz |
|---|---|
| 0.1 kHz | 100 |
| 1 kHz | 1,000 |
| 5 kHz | 5,000 |
| 20 kHz | 20,000 |
| 44.1 kHz (CD) | 44,100 |
| 48 kHz (Pro audio) | 48,000 |
| 96 kHz (HD audio) | 96,000 |
| 192 kHz (highest audio) | 192,000 |
Frequently Asked Questions
Why 44.1 kHz for CDs?
Set in 1980 by Sony/Philips. Reasoning: must capture human hearing (up to ~20 kHz) at 2x sampling (Nyquist theorem) plus margin. 44.1 kHz hits 22.05 kHz Nyquist limit cleanly. Choice partly historical accident - it aligned with available video tape technology used to master CDs.
Is higher sample rate better?
For most listening: 44.1 kHz (CD) is sufficient, no audible improvement above. For studio recording: higher rates (48, 96, 192 kHz) give more headroom for processing. Distinguishing 44.1 from 96 kHz in playback is essentially impossible for typical listeners.