Frequency Wavelength / GHz → MHz
Convert Gigahertz to Megahertz
Convert electromagnetic frequency and wavelength with an explicit refractive index. Convert Gigahertz (GHz) to Megahertz (MHz). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Megahertz to Gigahertz →
How to convert gigahertz to megahertz
Frequency times wavelength equals c/n, where c is exactly 299792458 m/s. Tables assume vacuum (n = 1). Supply the phase refractive index for your medium and frequency; dispersion and acoustic waves need other models.
Use x for the value in GHz, b for the intermediate value in Hz, and y for the result in MHz.
MHz = GHz × 1000000000 ÷ 1000000
Here n = 1 (vacuum). Static examples and tables assume vacuum; changing n in the calculator updates its result only.
Worked examples
10 GHz ≈ 10000 MHz
Step 1: (10 × 1000000000) ≈ 10000000000 Hz.
Step 2: 10000000000 ÷ 1000000 ≈ 10000 MHz.20 GHz ≈ 20000 MHz
Step 1: (20 × 1000000000) ≈ 20000000000 Hz.
Step 2: 20000000000 ÷ 1000000 ≈ 20000 MHz.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Gigahertz
Gigahertz (GHz) measures frequency wavelength under the conventions above. The base value in Hz is (x × 1000000000), where x is the numerical value in GHz. Factors shown here are rounded for display; calculations use the stored factor.
About Megahertz
Megahertz (MHz) measures frequency wavelength under the conventions above. The base value in Hz is (x × 1000000), where x is the numerical value in MHz. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Carry the same physical assumptions into subsequent physics calculations.
Gigahertz to megahertz reference table
| Gigahertz (GHz) | Megahertz (MHz) |
|---|---|
| 1 | 1000 |
| 5 | 5000 |
| 10 | 10000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
| 1000 | 1000000 |
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