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.