Calculate, convert and check circuit values in your browser.
International allocations: NTIA Redbook, ITU 2020 reference. National assignments and footnotes may differ.
λ = c/f; c = 299 792 458 m/s
Convert frequency and free-space wavelength. Look up three ITU regions using the labelled NTIA/ITU 2020 reference and distinguish band allocation from permission.
Content updated:
Use λ = c/f; c = 299792458 m/s. Convert frequency and free-space wavelength. Look up three ITU regions using the labelled NTIA/ITU 2020 reference and distinguish band allocation from permission.
Sources: nist.gov [1]
λ = 2.99792458 m. This is a calculated example under the model stated above; it is not a measured component specification.
Hz, kHz, MHz, GHz; m, cm, mm. Convert prefixes before substituting values; keep the input and output units attached to every number.
Sources: nist.gov [1]
Usually not. Use λ = v/f with the cable propagation speed or velocity factor. The calculator uses free-space c.
Sources: nist.gov [1]
No. National assignments, licensing, power limits and footnotes still apply. An international allocation is not an operating licence.
Sources: redbook.ntia.gov [1]
The page uses the NTIA Redbook international table labelled ITU 2020, from 8.3 kHz to 11.2 GHz. It is not a live regulatory update feed.
Sources: redbook.ntia.gov [1]
Answers use the stated model and units. Examples are calculated values, not measurements or component ratings.
