Gigahertz (GHz) and hertz (Hz) are units used to measure frequency, with one gigahertz equating to one billion hertz. To convert gigahertz to hertz, multiply the frequency value by 1,000,000,000. For example, a frequency of 3 GHz is equal to 3,000,000,000 Hz. Conversely, to convert hertz to gigahertz, divide the frequency value by 1,000,000,000. This means that 500,000,000 Hz is equal to 0.5 GHz. These conversions are essential in fields such as telecommunications, signal processing, and electronics, where understanding and manipulating different frequency units is crucial. Utilizing online calculators can simplify these conversions, ensuring accuracy and efficiency in various applications.