Aviation
Tools for travellers and pilots: flight times and distances, airport codes, the CO2 of a flight, jet lag plans, and calculators for weather reports and flight planning practice.
All tools
15
Airport Code Finder
Find an airport's IATA and ICAO code by typing its code, name or city. See its position, elevation and size, or list all the airports of a country.
Crosswind and Headwind Calculator
Enter the runway, wind and any gust to get the crosswind and headwind components, with a diagram. Compare the crosswind with the demonstrated limit.
Density Altitude Calculator
Work out density altitude at an airfield from its elevation, QNH and temperature. See the pressure altitude, ISA deviation and true airspeed, step by step.
E6B Flight Computer
Pilot training calculator: wind correction angle, heading and ground speed from the wind triangle, plus time, fuel, top of descent and unit conversion.
Flight CO2 Calculator
Work out a flight's CO2e from two airport codes or a distance, per passenger and for the whole trip, with the UK government's 2026 air factors.
Flight Time and Distance Calculator
Distance and estimated flight time between two airports, with the great-circle midpoint and the time difference on your travel date, daylight saving included.
Fuel Planning Calculator
Plan the fuel for a flight: trip, taxi, contingency and the VFR or IFR reserve of 14 CFR 91, in litres, US gallons and kilograms.
Holding Pattern Entry
Find the holding pattern entry (direct, parallel or teardrop) from the inbound course, the turns and your heading, with a drawing of the sectors.
Jet Lag Planner
Enter your home and destination time zones, travel date and flight time. See the time difference, arrival time and a day-by-day sleep and light plan.
Mach Number Calculator
Convert Mach number to true airspeed and back, using the speed of sound at an outside air temperature or an ISA altitude, with a table.
METAR Decoder
Decode a METAR, SPECI or TAF weather report line by line: wind, visibility, clouds, QNH and the flight category (VFR, MVFR, IFR, LIFR).
Standard Atmosphere Calculator
ISA temperature, pressure, air density and speed of sound at any altitude, the altitude of a pressure, and a table every 1,000 ft.
TAF Decoder
Decode a TAF airport forecast: its validity, wind, visibility in metres and miles, weather and clouds, and each FM, BECMG, TEMPO and PROB period in a timeline.
Top of Descent Planner
Find where to start the descent, the vertical speed it needs at your ground speed, and the 3 to 1 rule, from a 3 degree path or a gradient.
Weight and Balance Calculator
Add the items loaded on an aircraft to get the total weight, moment and centre of gravity, and check them against the envelope in kg or lb, mm or inches.
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Pilot tools are for training and planning practice, not for flight. Always use approved sources for a real flight.