Frequency Converter
Wavelength (electromagnetic / speed of light)
λ = c / f → —
Common Frequency Reference
| Name | Frequency | Wavelength |
|---|---|---|
| Human hearing (low) | 20 Hz | 15,000 km |
| Human hearing (high) | 20 kHz | 15 km |
| Ultrasound (medical) | 2–18 MHz | 150–17 m |
| AM radio | 530–1700 kHz | 566–176 m |
| FM radio | 88–108 MHz | 3.4–2.8 m |
| Bluetooth | 2.402–2.48 GHz | 12.5–12.1 cm |
| WiFi 2.4 GHz | 2.4–2.5 GHz | 12.5–12.0 cm |
| WiFi 5 GHz | 5.15–5.85 GHz | 5.8–5.1 cm |
| WiFi 6E / 6 GHz | 5.925–7.125 GHz | 5.1–4.2 cm |
| 5G mmWave | 24–47 GHz | 12.5–6.4 mm |
| Microwave oven | 2.45 GHz | 12.2 cm |
| GPS L1 signal | 1.57542 GHz | 19.0 cm |
| CPU (typical desktop) | 3–5 GHz | 10–6 cm |
| Visible light (red) | 400 THz | 750 nm |
| Visible light (violet) | 790 THz | 380 nm |