What wavelength can explain
Wavelength is a physical property useful for antenna scale and propagation intuition, but it is not a complete coverage model.
NETWORK PHYSICS CALCULATOR
Wi-Fi Wavelength Calculator: 2.4, 5 and 6 GHz
Wavelength equals the speed of light divided by frequency. Higher-frequency Wi-Fi has a shorter wavelength, but indoor coverage also depends on power, channel width, antennas, walls, interference and receiver sensitivity.
INTERACTIVE MODEL
Calculate the physical limit
This is an educational lower-bound model, not an address-level performance prediction.
What it cannot predict alone
A wavelength calculation cannot tell you the speed or signal level in a room without building geometry, materials, transmit power and radio characteristics.
QUESTIONS
Common questions
Does shorter wavelength always mean worse Wi-Fi?
No. Frequency is only one part of the link budget and network design.
Is 6 GHz the same as 6G mobile service?
No. Wi-Fi 6E and Wi-Fi 7 can use the 6 GHz band; that name is unrelated to a future sixth cellular generation.
Formula and limitations
Wavelength = 299,792,458 m/s ÷ frequency in hertz.
Reference constants: NIST speed of light in vacuum. Fiber propagation uses a disclosed engineering approximation of 204,000 km/s; actual group velocity varies with the fiber.