METAR / TAF decoder

Flight category + density altitude · aviationweather.gov

Paste METAR or TAF

Field elevation (ft) — for density altitude

Format reference: ICAO Annex 3 / FAA Order 7900.5

Paste a METAR or TAF on the left. Click "Sample METAR" to see how it works.

ICAO Annex 3 / FAA Order 7900.5 format. Flight category per FAA Order 7110.10 (worse of ceiling/visibility). Density altitude via the ICAO standard atmosphere formula. Runs entirely in your browser.