Gigahertz to Hertz Converter

One Gigahertz equals 1000000000 Hertz (1 GHz = 1000000000 Hz). Multiply a Gigahertz value by 1000000000 to get the equivalent in Hertz. Use the calculator above for your value, or check the examples and reference table below.

Formula

Hz = GHz × 1000000000

Multiply the Gigahertz value by 1000000000 to get the equivalent value in Hertz.

Example Conversions

1 Gigahertz (GHz)

1000000000 Hertz (Hz)

5 Gigahertz (GHz)

5000000000 Hertz (Hz)

10 Gigahertz (GHz)

1.000000e+10 Hertz (Hz)

25 Gigahertz (GHz)

2.500000e+10 Hertz (Hz)

100 Gigahertz (GHz)

1.000000e+11 Hertz (Hz)

Conversion Table

Common conversion values from Gigahertz to Hertz
Gigahertz (GHz)Hertz (Hz)
0.1100000000
0.5500000000
11000000000
22000000000
55000000000
101.000000e+10
252.500000e+10
505.000000e+10
1001.000000e+11
2502.500000e+11
5005.000000e+11
10001.000000e+12

How to Convert Manually

Use these steps to convert Gigahertz values to Hertz without the calculator.

  1. Write down the value in Gigahertz (GHz) that you want to convert.
  2. Multiply that value by 1000000000.
  3. For example, 10 Gigahertz × 1000000000 = 1.000000e+10 Hertz.
  4. Label the result as Hertz (Hz).

Relative Size Comparison

1 Gigahertz
1 GHz
1 Hertz1.000000e-9 Gigahertz

This chart shows the visual difference in size between exactly one Gigahertz and one Hertz.

About Gigahertz and Hertz

The gigahertz is one billion hertz. Modern CPU clock speeds, Wi-Fi bands (2.4/5/6 GHz), and mobile networks operate in gigahertz. The hertz is the SI derived unit of frequency: one cycle per second, named after Heinrich Hertz. Sound pitch, mains electricity (50/60 Hz), and display refresh all measure in hertz. One Gigahertz equals 1000000000 Hertz (1 GHz = 1000000000 Hz). Gigahertz is used in CPU clock speeds and in Wi-Fi and mobile network bands. Hertz is used in audio pitch and tuning.

Precision and Rounding:Frequency conversions are exact decimal shifts except rpm and rps, which involve the factor 60. Audio and radio work round to convenient figures; clock signals, tuning, and rotating machinery balancing need the unrounded value.

Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).

Worked Example

15Gigahertz equals1.500000e+10Hertz.

15 GHz × 1000000000 = 1.500000e+10 Hz

FAQ

How do I convert Gigahertz to Hertz?

Multiply the Gigahertz value by 1000000000 to get the equivalent value in Hertz.

What is the formula for Gigahertz to Hertz?

The formula is Hz = GHz × 1000000000.

How many Hertz are in 1 Gigahertz?

1 Gigahertz equals 1000000000 Hertz.

Can I convert Hertz back to Gigahertz?

Yes. 1 Hertz equals 1.000000e-9 Gigahertz, and the related converter can reverse the calculation.

What are common names for Gigahertz and Hertz?

Gigahertz is shown as GHz and may also be searched as gigahertz. Hertz is shown as Hz and may also be searched as hertz.

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