Free Aviation Toolkit
Aviation Tools& Calculators
Free aviation calculators for flight sim pilots. From weather decoding to performance planning - everything you need for a realistic flight.
Featured
Route Planner
Plan routes and discover where to fly on an interactive globe. Range rings for your aircraft, fuel and payload effects, flight-time filters, and curated scenic destinations across 4,500+ airports.
Open toolFlight Map
Plot a multi-leg journey across 4,500+ airports, pick the aircraft for each leg, and total your distance and flight time. Your trip is saved in your browser.
Open toolSimBrief OFP Preview
Import your SimBrief flight plan and view a formatted brief with route, weather, alternates, fuel data, and a terrain elevation profile along your planned route.
Open toolAircraft Quick Reference
Search any aircraft and instantly pull up its V-speeds, power settings, flap schedule, engine limits and spec sheet.
Open tool21 tools in 6 categories
Weather
2Performance
4Density Altitude
Calculate density altitude and pressure altitude from elevation, QNH, and temperature to understand true aircraft performance.
Open toolTakeoff Distance
Estimate ground roll and takeoff distance over a 50 ft obstacle based on weight, density altitude, and wind.
Open toolLanding Distance
Calculate required landing distance and stopping distance based on approach speed, weight, and runway conditions.
Open toolWeight & Balance
Enter station weights to compute total weight and center of gravity, and verify you are within CG limits.
Open toolNavigation
6Descent Calculator
Top of descent via the 3:1 rule, top of climb, and the descent rate required to make a crossing restriction.
Open toolCrosswind Calculator
Resolve wind into headwind and crosswind components from wind direction, speed, and runway heading.
Open toolWind Correction Angle
Calculate the wind correction angle and true groundspeed required to maintain your desired track.
Open toolTrue Altitude
Convert indicated altitude to true altitude using temperature deviation from ISA standard.
Open toolHolding Pattern
Calculate holding pattern entry type, timing, and leg lengths based on speed and wind.
Open toolETP / PNR
Find the equal time point and point of no return between two airports for diversion planning.
Open toolPlanning
5Route Planner
Plan routes and discover where to fly on an interactive globe. Range rings for your aircraft, fuel and payload effects, flight-time filters, and curated scenic destinations across 4,500+ airports.
Open toolFlight Map
Plot a multi-leg journey across 4,500+ airports, pick the aircraft for each leg, and total your distance and flight time. Your trip is saved in your browser.
Open toolSimBrief OFP Preview
Import your SimBrief flight plan and view a formatted brief with route, weather, alternates, fuel data, and a terrain elevation profile along your planned route.
Open toolFuel Calculator
Plan trip fuel with taxi, contingency, alternate, and final reserve fuel blocks.
Open toolTime / Speed / Distance
Solve any leg of the E6B flight computer triangle - enter two values to calculate the third.
Open toolConversion
3True Airspeed (TAS)
Calculate true airspeed from IAS at any altitude and temperature, plus Mach number and speed of sound.
Open toolFuel Converter
Convert fuel quantities between kilograms, pounds, US gallons, and litres for any fuel type.
Open toolUnit Converter
E6B-style aviation unit conversions: distance, speed, pressure, temperature, weight, and more.
Open tool