How Do You Convert kHz to Hz?
Multiply kilohertz by 1,000 to get hertz. The formula is: Hz = kHz x 1,000. Simply move the decimal point three places to the right.
Priya Patel sets up audio for a corporate event. The sound engineer mentions a feedback problem at 3.2 kHz. She adjusts the graphic equalizer: 3.2 x 1,000 = 3,200 Hz. She pulls the 3,150 Hz band down by 6 dB on the EQ, eliminating the feedback squeal without noticeably affecting speech clarity.
Sample Rate Reference
| Standard | kHz | Hz | Use Case |
|---|---|---|---|
| Telephone | 8 kHz | 8,000 Hz | Voice calls |
| AM Radio | 22.05 kHz | 22,050 Hz | Broadcast radio |
| CD Audio | 44.1 kHz | 44,100 Hz | Music CDs, streaming |
| DVD / Video | 48 kHz | 48,000 Hz | Video production |
| Hi-Res Audio | 96 kHz | 96,000 Hz | Studio recording |
| Ultra Hi-Res | 192 kHz | 192,000 Hz | Mastering, archival |
| DSD | 2,822.4 kHz | 2,822,400 Hz | SACD audio |
Practical Applications
Audio Production
Marco Ferreira plays background music at his restaurant. His streaming service delivers at 44.1 kHz (44,100 Hz), standard CD quality. For his occasional live jazz nights, the sound engineer records at 96 kHz (96,000 Hz) and mixes down to 48 kHz (48,000 Hz) for the final video recording.
Radio Communications
Tom Brewer uses a ham radio. AM broadcast stations are spaced at 10 kHz intervals (10,000 Hz bandwidth each). His amateur radio transceiver tunes in 100 Hz steps. A station at 7.150 kHz on the display = 7,150,000 Hz = 7.15 MHz, in the 40-meter amateur band.
Hearing Tests
Coach Rivera arranges hearing screenings for his players. The audiologist tests at standard frequencies: 0.25, 0.5, 1, 2, 4, and 8 kHz (250, 500, 1,000, 2,000, 4,000, and 8,000 Hz). Players with hearing loss above 4 kHz (4,000 Hz) may struggle to hear whistles and high-pitched coaching signals.