I'm entering a frequency into legacy spectrum software that only accepts kHz. My signal is 2.4 GHz — what do I type?

Enter 2,400,000 kHz. Multiply the GHz value by 1,000,000. For 5 GHz Wi-Fi, enter 5,000,000 kHz.

A radio regulation document lists the band as 824,000–849,000 kHz. What is that in GHz?

Divide by 1,000,000: 0.824–0.849 GHz. This is the US cellular uplink band (Band 5 / 850 MHz range). See also: [GHz to MHz](/frequency/ghz-to-mhz/) for intermediate conversions.

Why would anyone express a GHz frequency in kHz instead of MHz?

Legacy databases and ITU spectrum allocation tables were built when kHz was the standard unit. Older test equipment often displays in kHz across its full frequency range. Converting to kHz keeps data consistent when querying those systems or comparing to historical allocations.

My software development kit requires frequency in kHz. The antenna is rated for 2.45 GHz. What value should I enter?

Enter 2,450,000 kHz. Multiply 2.45 × 1,000,000 = 2,450,000. Always verify the unit in the SDK documentation — some libraries accept Hz, not kHz.

GHz to kHz Converter

Enter a value to instantly convert between frequency units.

From

Precision4 dp

1 Gigahertz = 1000000 Kilohertz

Key Formulas

Hertz → Kilohertz

kHz = Hz × 0.001

Kilohertz → Hertz

Hz = kHz × 1000

Megahertz → Gigahertz

GHz = MHz × 0.001

Gigahertz → Megahertz

MHz = GHz × 1000

Formula

kHz = GHz × 1,000,000

Spectrum management databases and some older RF test equipment display frequencies in kHz even for GHz-range signals. When cross-referencing a 2.4 GHz Wi-Fi channel against a spectrum allocation table expressed in kHz, or entering a GHz frequency into legacy software that requires kHz input, you need this exact conversion. Multiply the GHz value by one million to get kHz.

Source: NIST SP 811, Table B.8

Last reviewed: 2026-06-11 · see our methodology

Frequently Asked Questions

Real-World Examples

1 GHz = one million kHz. This is the definition of the relationship between giga (10⁹) and kilo (10³) prefixes.

1 GHz = 1000000 kHz

Wi-Fi 2.4 GHz band expressed in kHz. Legacy spectrum allocation tables and some older RF analysers display this as 2,400,000 kHz.

2.4 GHz = 2400000 kHz

5.8 GHz cordless phone band. Cordless phones shifted to this band to avoid Wi-Fi and Bluetooth interference in the 2.4 GHz range.

5.8 GHz = 5800000 kHz

GPS L1 signal at 1.575 GHz = 1,575,000 kHz. Satellite navigation systems broadcast at precisely controlled frequencies.

1.575 GHz = 1575000 kHz

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GHz to kHz Converter

Key Formulas

Formula

Frequently Asked Questions

Real-World Examples

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