How Do You Convert Hz to MHz?
Divide hertz by 1,000,000 to get megahertz. The formula is: MHz = Hz / 1,000,000. Move the decimal point six places to the left.
Tom Brewer builds a crystal radio as a project with Maya. The local AM station broadcasts at 1,050,000 Hz. Converting: 1,050,000 / 1,000,000 = 1.05 MHz. He selects a crystal that resonates at 1.05 MHz to tune in to the station. AM stations are identified by their kHz value: 1050 kHz = 1.05 MHz.
Radio Spectrum Reference
| Band | Frequency (Hz) | Frequency (MHz) |
|---|---|---|
| AM Radio | 540,000-1,600,000 Hz | 0.54-1.6 MHz |
| Shortwave Radio | 3,000,000-30,000,000 Hz | 3-30 MHz |
| FM Radio | 88,000,000-108,000,000 Hz | 88-108 MHz |
| VHF TV | 54,000,000-216,000,000 Hz | 54-216 MHz |
| UHF TV | 470,000,000-890,000,000 Hz | 470-890 MHz |
| Cell phones (4G) | 700,000,000-2,600,000,000 Hz | 700-2,600 MHz |
| WiFi 2.4 GHz | 2,400,000,000 Hz | 2,400 MHz |
| WiFi 5 GHz | 5,000,000,000-5,800,000,000 Hz | 5,000-5,800 MHz |
Practical Applications
Wireless Networking
Priya Patel troubleshoots WiFi for a client. The router operates at 2,437,000,000 Hz = 2,437 MHz (WiFi channel 6 on the 2.4 GHz band). Neighboring networks on channels 1 (2,412 MHz) and 11 (2,462 MHz) cause interference. She switches to 5,180 MHz (channel 36 on the 5 GHz band) for less congestion.
CPU Overclocking
Maya Singh overclocks her gaming PC. The base clock is 3,600,000,000 Hz = 3,600 MHz = 3.6 GHz. She pushes it to 4,200 MHz (4.2 GHz) with better cooling. That is 600,000,000 additional cycles per second. She benchmarks to confirm the 16.7% clock speed increase translates to a measurable performance gain.
Medical Imaging
Ultrasound machines operate at 2-18 MHz (2,000,000-18,000,000 Hz). A cardiac ultrasound uses about 2.5 MHz (2,500,000 Hz) for deep tissue penetration. A musculoskeletal ultrasound uses 12 MHz (12,000,000 Hz) for shallow, high-resolution imaging. Dana converts between Hz and MHz when comparing equipment specifications for a clinic renovation.