Aviation Tools

Free aviation and flight calculators that run entirely in your browser — density and pressure altitude, true airspeed, crosswind and wind-correction, cloud base, top of descent, rate of descent, climb gradient, weight and balance, fuel endurance and range, ISA temperature, Mach number and glide distance. A pocket E6B. Nothing is uploaded.

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Density Altitude Calculator

Compute density altitude from field elevation, altimeter setting and outside air temperature — the key aircraft performance figure.

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Pressure Altitude Calculator

Convert field elevation to pressure altitude from the altimeter setting in inHg or hPa, with the correction applied.

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True Airspeed (TAS) Calculator

Derive true airspeed from calibrated airspeed, pressure altitude and temperature using the air-density ratio.

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Crosswind & Headwind Component Calculator

Split reported wind into crosswind and head/tailwind components for a runway, with the crosswind side.

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Wind Correction Angle & Ground Speed Calculator

Solve the wind triangle: the heading to fly and resulting ground speed from course, true airspeed and wind.

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Cloud Base / Ceiling Calculator

Estimate cumulus cloud base height from surface temperature and dew-point spread, in feet AGL and MSL.

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ISA Temperature & Deviation Calculator

Get the standard-atmosphere temperature and pressure at any altitude, plus the deviation from actual OAT.

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Top of Descent (TOD) Calculator

Find the distance and point to start your descent using the 3:1 rule, with required descent rate, time and gradient.

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Rate of Descent & Glide-Slope Calculator

Convert a glide-path angle or ground speed into the feet-per-minute rate of descent, with gradient in ft/nm and percent.

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Climb Gradient & Rate of Climb Calculator

Convert a required climb gradient (ft/nm or %) and ground speed into rate of climb in fpm for departure-procedure compliance.

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Weight & Balance / CG Calculator

Add loading stations (weight × arm) to find total weight, total moment and center of gravity, and check CG against limits.

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Fuel Burn, Endurance & Range Calculator

Work out flight endurance and range from usable fuel, hourly burn and ground speed, keeping a reserve in the tanks.

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Mach Number Calculator

Compute an aircraft's Mach number from true airspeed and outside air temperature, or back-solve TAS from a given Mach.

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Glide Distance Calculator

Estimate how far an aircraft can glide from a given height using its glide ratio, for engine-out planning.

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