Aviation Tools

Browse all available aviation tools.

Available tools

Altimeter Correction Calculator Compute the cold-weather altimeter correction so the altimeter reads true altitude in colder-than-standard air.
Approach Gradient Calculator Compute the approach path gradient in percent from altitude lost over nautical miles flown.
Bank Angle for Standard Rate Calculator Compute the bank angle that produces a desired turn rate at a given true airspeed.
Bank Angle From Load Factor Calculator Compute the bank angle that produces a given load factor in a coordinated level turn.
Basic Block Fuel Subtotal Calculator Sum taxi, trip, contingency, and final-reserve components into a basic block-fuel subtotal; other required fuel may still apply.
Best Glide Speed Calculator Compute the best glide speed for the current weight from a published reference.
Bingo Fuel Calculator Compute the bingo fuel state by adding the transit requirement to the reserve.
Block Fuel Calculator Sum trip, contingency, alternate, final reserve, and taxi fuel into the total block fuel.
Burn Rate Calculator Compute the average fuel burn rate as burnKgPerHour = fuelUsedKg / hoursBurned.
Cabin Altitude Calculator Invert the ISA pressure equation below the tropopause to convert cabin pressure to a cabin altitude.
Cabin Altitude Change Rate Calculator Calculate average cabin-altitude change per minute from two observations and elapsed time.
Cabin Altitude Threshold Checker Compare cabin altitude with a configurable threshold without determining regulatory oxygen requirements.
Cabin Pressure Altitude Calculator Compute the equivalent cabin pressure altitude from the ambient altitude and the pressurization differential.
Cabin Rate of Climb Calculate the average cabin-altitude change in feet per minute from two cabin altitudes and elapsed minutes. A negative result means cabin descent; this is a measured average, not an aircraft operating limit.
Calibrated Airspeed Calculator Convert true airspeed back to calibrated airspeed using the two-percent-per-thousand-feet rule.
CAS from EAS Calculator Convert equivalent airspeed to calibrated airspeed through the compressible Rayleigh pitot relation.
Center of Gravity Calculator Locate the aircraft center of gravity by dividing total moment by total weight.
CG Percent MAC Calculator Express the center-of-gravity position as a percentage of the mean aerodynamic chord.
CG Shift Fuel Calculator Calculate the center-of-gravity shift after all specified fuel is burned from its stated arm.
Climb Gradient Calculator Compute the climb gradient as altitude gained over horizontal distance flown.
Cloud Base Calculator Estimate the cumulus cloud base height from the temperature-dew point spread.
Cold Temperature Correction Calculator Estimate the altitude correction for cold temperatures against the ISA atmosphere.
Compass Heading Calculator Convert a magnetic heading to a compass heading by applying the compass deviation.
Contingency Fuel Calculator Compute the contingency fuel allowance as a percentage of trip fuel.
Contingency Fuel Percentage Calculator Compute the contingency allowance as a percentage of the planned trip fuel.
Corrected Altitude Calculator Compute what an altimeter would indicate for a known true altitude under non-standard temperature — the inverse of the cold-weather altitude correction.
Corrected IAS For Weight Calculator Correct an indicated airspeed for weight using the square-root weight ratio.
Crab Angle Calculator Compute the heading offset into a direct crosswind needed to hold a course.
Crossover Altitude Calculator Find by bisection the altitude where a constant Mach number and a constant calibrated airspeed correspond to the same true airspeed.
Crosswind Component Calculator Compute the magnitude of the crosswind component of a wind at an angle to the runway or course.
Crosswind Gust Component Calculator Compute the crosswind component of a peak gust at a given angle to the runway.
Crosswind Limit Checker Compare a crosswind against the aircraft's maximum demonstrated crosswind.
Crosswind Takeoff Check Resolve wind speed into an absolute crosswind component relative to runway heading and compare it with a user-supplied aircraft or pilot limit. This checks only the wind component, not runway condition or takeoff performance.
Demonstrated Crosswind Comparison Compare a crosswind component with a published demonstrated value; this does not determine an operating limitation.
Density Altitude Calculator Compute density altitude from pressure altitude and outside air temperature.
Density Altitude ISA Correction Calculator Estimate density altitude from pressure altitude and outside air temperature using the ISA lapse rate.
Density at Altitude Calculator Compute the ISA air density ratio against sea-level standard density in the troposphere.
Density Ratio Calculator Compute the ISA air density ratio against sea-level standard density.
Descent Angle Calculator Compute the flight path angle of a descent from the altitude lost over a given distance.
Descent Rate Calculator Compute the vertical speed needed to hold a descent angle at a given ground speed.
Diversion Fuel Calculator Compute the fuel needed to divert a given distance plus an approach and landing allowance.
Dynamic Pressure Calculator Compute the dynamic pressure from indicated airspeed at sea level density.
Endurance Calculator Compute how long the usable fuel lasts at a given consumption rate.
Equivalent Airspeed Calculator Convert true airspeed to equivalent airspeed for the altitude's density ratio.
Estimated Trip Fuel Calculator Estimate the fuel needed for a trip from distance, ground speed, and fuel burn rate.
ETA at Waypoint Calculator Estimate the clock time of arrival at a waypoint from a departure time, distance, and ground speed.
ETA Calculator Compute the estimated time of arrival from a departure clock time and flight duration.
ETA From Departure Calculator Add a flight time in minutes to a departure time of day, wrapping past midnight.
Extra Fuel Calculator Compute the extra fuel carried above the planned block fuel from the total requested uplift.
Field Elevation Pressure Calculator Compute the ISA static pressure in hectopascals at a given field elevation.
Final Reserve Fuel Calculator Compute the final reserve fuel needed to hold for a given time at the holding burn rate.
Flight Time Calculator Compute the flight time over a distance at a given ground speed.
Fuel at Waypoint Calculator Compute the fuel remaining on arrival at a waypoint from the starting fuel and per-mile burn.
Fuel Burn Calculator Compute the fuel burned over a flight from the hourly consumption rate.
Fuel Per Nautical Mile Calculator Compute the fuel burned per nautical mile from the hourly flow and ground speed.
Fuel to Climb Calculator Compute the fuel needed to climb a given altitude at a given climb rate and fuel flow.
Fuel Weight Calculator Compute the weight of a fuel load from its volume and density.
Glide Distance Calculator Compute how far an aircraft can glide from an altitude at a given glide ratio.
Glide Ratio Calculator Compute the glide ratio as horizontal distance covered per unit of altitude lost.
Ground Speed Calculator Compute ground speed from true airspeed and wind using the wind triangle.
Groundspeed Corrected Calculator Compute ground speed from true airspeed with signed headwind and crosswind components.
Groundspeed From Mach Calculator Compute true ground speed from Mach number and outside air temperature.
Groundspeed from Wind Triangle Calculator Solve the wind triangle for ground speed from true airspeed, course, and wind.
Groundspeed Required for ETA Calculator Compute the constant ground speed needed to cover a distance before a deadline.
Gust Load Factor Calculator Estimate the positive one-g vertical-gust load factor using Δn = ρVUaK_g / (2W/S). Inputs must use consistent SI units; this is an aerodynamic estimate, not a certified flight-envelope limit.
Gust Penetration Speed Calculator Estimate the rough-air penetration speed as 1.9 times the stalling speed.
Gust Stall Speed Calculator Calculate stall speed at a specified gust load factor using Vₛ,n = Vₛ,1g × √n. Supply a load factor derived from the applicable aircraft gust-envelope method; gust velocity alone is not enough to determine it.
Headwind Component Calculator Compute the signed headwind component of a wind; negative values are tailwinds.
Headwind Takeoff Factor Calculator Compute the planning multiplier that shortens takeoff distance for a given headwind.
Holding Fuel Required Calculator Compute the fuel required to hold for a given time at the expected burn rate.
Holding Pattern Time Calculator Compute the total time of one complete holding pattern circuit from the inbound leg time and turn rate.
ISA Deviation Calculator Compute how much the outside air temperature deviates from ISA at the altitude.
ISA Deviation Calculator Compare the outside air temperature with the ISA standard temperature at a pressure altitude.
ISA Pressure at Altitude Calculator Compute ISA standard pressure for a geopotential altitude through the troposphere and lower stratosphere.
ISA Standard Temperature Calculator Compute the ISA standard temperature for a given altitude in the troposphere.
Joker Fuel Calculator Compute the joker fuel state by adding a planned margin to the bingo fuel.
Landing Distance Factor Calculator Compute the planning multiplier for landing distance from density altitude, surface, and tailwind using documented rule-of-thumb factors.
Landing Distance Wind Scenario Calculator Apply a user-supplied per-knot wind adjustment to a base distance for scenario comparison, not approved aircraft performance.
Landing Distance With Wind Apply user-provided distance adjustments per knot of headwind or tailwind to a baseline landing distance, then multiply by a chosen safety factor. The percentages must come from the aircraft's approved performance data; no universal wind correction exists.
Landing Ground Roll Calculator Compute the landing ground roll from the touchdown speed and average braking deceleration using constant-deceleration kinematics.
Landing Weight Calculator Compute the landing weight by subtracting trip fuel from the takeoff weight.
Lift Coefficient Calculator Compute the lift coefficient from lift force, dynamic pressure, and wing area.
Lift-to-Drag Ratio Calculator Compute the aerodynamic efficiency of an aircraft as the ratio of lift to drag.
Load Factor Calculator Compute the load factor in a level turn from the bank angle.
Mach Number Calculator Compute the Mach number from true airspeed and temperature.
Magnetic Bearing from True Calculator Convert a true bearing to a magnetic bearing by subtracting east-positive variation.
Magnetic Course Calculator Convert a true course to a magnetic course by subtracting the magnetic variation, east positive.
Magnetic Heading Calculator Convert a true heading to a magnetic heading using east-positive variation (east is least).
Maneuvering Speed Va Calculator Scale the maneuvering speed for actual weight using the square-root weight ratio.
Max Endurance Airspeed Calculator Estimate the maximum-endurance airspeed of a glider, which equals the minimum-sink speed.
Max Range Airspeed Calculator Estimate the best glide airspeed for maximum range as the square root of three times the minimum-sink speed.
Minimum Fuel Required Add planned trip, alternate, contingency, and final-reserve fuel in one consistent unit, then show the margin against fuel on board. It does not substitute for route-specific regulations or aircraft performance planning.
Minimum Sector Altitude Calculator Round the highest obstacle up to the next hundred feet and add 1000 feet of clearance.
Minimum Sink Speed Calculator Compute the speed for minimum sink rate scaled by the fourth-root weight ratio.
Obstacle Clearance Gradient Calculator Compute the climb gradient required to clear an obstacle over a given horizontal distance.
Oxygen Altitude Threshold Compare a flight altitude with a threshold supplied by the user and calculate feet above or below that threshold. Oxygen rules vary by jurisdiction, aircraft, duration, and crew/passenger status; this tool does not choose a legal threshold.
Oxygen Duration Calculator Compute how long the onboard oxygen lasts at a given crew or passenger flow rate.
Oxygen Required Calculator Compute the onboard oxygen volume required for a duration at a given combined flow rate.
Payload Available Calculator Compute the remaining payload capacity after subtracting empty weight and fuel from max takeoff weight.
Power Loading Calculator Compute the power loading as aircraft weight divided by engine power.
Pressure Altitude Calculator Compute pressure altitude from field elevation and the QNH altimeter setting.
Pressure Altitude From QNH Calculator Convert an indicated altitude and QNH into pressure altitude at 27 feet per hectopascal.
Pressure at Altitude Calculator Compute the ISA static pressure at a given pressure altitude in the troposphere.
Pressure Difference Calculator Compare a QNH setting against the ISA standard pressure of 1013.25 hPa.
Pressure Ratio Calculator Compute the ISA static pressure ratio against sea-level standard pressure.
QNH from QFE Field Elevation Calculator Approximate QNH from QFE by adding the field elevation pressure at roughly 8.23 meters per hectopascal.
Quartering Wind Component Resolve reported wind-from direction and speed against a runway heading. Positive headwind means wind from ahead; a negative value is a tailwind. Signed crosswind is relative to the heading and should be interpreted with local runway convention.
Range Calculator Compute the still-air distance reachable from usable fuel, flow rate, and ground speed.
Rate of Climb from Gradient Calculator Compute the climb rate in feet per minute required to sustain a climb gradient at a given true airspeed.
Rate of Turn Calculator Compute the rate of turn in degrees per second from true airspeed and bank angle.
Remaining Runway Calculator Compute the remaining runway after a given distance has been consumed.
Required Approach Speed Gust Calculator Add half the reported gust spread to the reference approach speed for gusty conditions.
Required Descent Gradient Calculator Compute the descent gradient in feet per nautical mile needed to lose an altitude over a distance.
Required Reserve Fuel Calculator Compute the reserve fuel needed for a given endurance time and consumption rate.
Runway Required Takeoff Calculator Compute the takeoff distance required after adjusting for a headwind component.
Runway Slope Correction Calculator Adjust a published takeoff or landing distance for a runway slope; positive slope is uphill.
Runway Slope Scenario Factor Calculator Apply a user-supplied distance-change rate to runway slope for scenario comparison, not approved aircraft performance.
Runway Wind Components Resolve a reported wind onto a specific runway using theta = windFromDeg - runwayHeadingDeg, headwindComponentKt = windSpeedKt * cos(theta) and crosswindComponentKt = windSpeedKt * sin(theta).
Service Ceiling Checker Check a planned cruising altitude against the aircraft's published service ceiling.
Specific Endurance Calculator Compute the specific endurance as enduranceHoursPerKg = 1 / fuelFlowKgPerHour.
Specific Range Calculator Compute the specific range as nauticalMilesPerKg = trueAirspeedKt / fuelFlowKgPerHour.
Speed of Sound Calculator Compute the local speed of sound from the outside air temperature.
Stall Speed Altitude Correction Calculator Compute how the stall speed increases with altitude as the air density drops.
Stall Speed in Bank Calculator Compute the increased stall speed in a level turn from the bank angle.
Stall Speed Weight Correction Calculator Scale a published stall speed for actual weight using the square-root weight ratio.
Tailwind Component Calculator Compute the signed tailwind component of a wind at an angle to the course; positive values are tailwinds.
Tailwind Landing Check Check whether a runway tailwind component is at or below a supplied landing limit.
Takeoff Distance Factor Calculator Compute the planning multiplier for takeoff distance from density altitude, surface, tailwind, and slope using documented rule-of-thumb factors.
Takeoff Distance With Slope Apply a configurable linear runway-slope correction to a base takeoff distance. The default 10% distance change per 1% slope is a planning rule of thumb, not a substitute for the aircraft flight manual.
Takeoff Ground Roll Calculator Compute the takeoff ground roll from the liftoff speed and average forward acceleration using constant-acceleration kinematics.
Takeoff Weight Calculator Compute the total takeoff weight from fuel and either ZFW or payload.
TAS from Mach Temperature Calculator Convert a Mach number and outside air temperature to true airspeed via the local speed of sound.
Taxi Fuel Calculator Compute the fuel burned during taxi from the ground burn rate and taxi time.
Time to Climb Calculator Compute the time needed to climb a given altitude at a sustained climb rate.
Time to Descent Calculator Compute the minutes needed to descend an altitude at a given vertical speed.
Time to Top of Climb Calculator Compute the time in minutes to climb from the current altitude to a target altitude at a given rate of climb.
Top of Descent Calculator Compute the distance before the target where a descent must begin for a given rate and ground speed.
Total Moment Calculator Compute the moment of a weight applied at a given arm.
Total Wind Component Calculator Combine signed headwind and crosswind components into the total wind magnitude.
Tropopause Check Calculator Check whether a given altitude is at or above the ISA tropopause.
True Airspeed Calculator Estimate true airspeed from calibrated airspeed using the two-percent-per-thousand-feet rule.
True Altitude Calculator Correct an indicated altitude for the temperature deviation from ISA.
True Bearing from Magnetic Calculator Convert a magnetic bearing to a true bearing by adding east-positive variation.
True Course Calculator Convert a magnetic course to a true course by adding the magnetic variation, east positive.
True Heading Calculator Convert a magnetic heading to a true heading using east-positive variation (west is best).
Turn Diameter Calculator Compute the full diameter of a coordinated level turn from true airspeed and bank angle.
Turn Radius Calculator Compute the radius of a coordinated level turn from true airspeed and bank angle.
Useful Load Calculator Compute the useful load as the difference between max takeoff weight and empty weight.
Vapp Speed Calculator Compute the final approach speed by adding a wind/gust correction to the reference speed.
VFE Speed Calculator Compute the maximum flap extension speed as 1.6 times the stall speed.
VLE Speed Calculator Compute the maximum landing gear extended speed as 1.8 times the stall speed.
VLO Speed Calculator Compute the maximum landing gear operating speed as 1.7 times the stall speed.
VNE Corrected Calculator Compute the corrected never-exceed speed decreasing linearly with altitude.
VNO Speed Calculator Calculate VNO from VNE and an aircraft-specific ratio. VNO is a certified operating limitation and cannot be derived from a universal VNO/VNE constant; use a ratio backed by the aircraft documentation.
Vr Speed Calculator Scale the rotation speed for actual weight using the square-root weight ratio.
Vref Speed Calculator Compute final-approach speed as 1.3 times the stall speed scaled for actual weight.
VS0 Speed Calculator Estimated landing-configuration stall speed from clean stall speed.
VS1 Speed Calculator Compute the clean-configuration stall speed as 1.15 times the reference stall speed.
Vx Speed Calculator Compute the best angle-of-climb speed for the current weight from a published reference.
Vy Speed Calculator Compute the best rate-of-climb speed for the current weight from a published reference.
Weight Balance Moment Calculator Compute the load moment from a weight and its arm distance.
Weight Shift CG Calculator Compute how far the center of gravity moves when a load is shifted a given distance.
Wind Correction Angle Calculator Compute the wind correction angle needed to hold a course in a known wind.
Wind Decomposition Calculator Decompose a wind relative to the course into headwind and crosswind components using headwindComponentKt = windSpeedKt * cos(angle) and crosswindComponentKt = windSpeedKt * sin(angle).
Wind Direction from Components Calculator Recover the relative wind direction from headwind and crosswind components.
Wind Gust Factor Calculator Convert a gust spread into a gust factor using a percentage of the spread.
Wind Gust Spread Calculator Compute the gust spread (peak gust minus sustained wind) for runway crosswind assessment.
Wind Speed from Components Calculator Compute the total wind speed from its headwind and crosswind components.
Wing Loading Calculator Compute the wing loading as aircraft weight divided by wing area.
Zero Fuel Weight Calculator Compute the zero fuel weight as the sum of empty weight and payload.

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