Aviation Calculator

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Aviation Calculator

General Aviation reference tool for Cessna & Piper pilots. Select a calculator from the dropdown above to get started.

Use the Select Calculator menu above

Density Altitude

Field Elevation (ft MSL)

Altimeter Setting 29.92 inHg

27.5031.50 inHg

OAT +15 °C

-40 °C+50 °C

Pressure Altitude

Indicated Altitude (ft)

Altimeter Setting (inHg)

True Airspeed

Indicated Airspeed (kts)

Pressure Altitude 8,000 ft

020,000 ft

OAT -2 °C

-60 °C+50 °C

Wind / Crosswind Component

Runway Heading 270°

0° (N)359°

Wind Direction (from) 310°

0° (N)359°

Wind Speed 18 kt

060 kt

Cloud Base Estimate

Temperature Units

Surface Temp

Dewpoint

Fuel Planning

Distance (nm)

True Airspeed (kts)

Wind Component (kts) positive = headwind, negative = tailwind

Fuel Burn (gph)

Fuel on Board (gal)

Reserve (gal)

Weight & Balance

Always verify against your aircraft's actual POH and weight & balance record. Empty weight and CG arm vary by individual aircraft.

Aircraft

Empty Weight (lbs)

Empty CG Arm (in)

Pilot (lbs)

Front Pax (lbs)

Rear Pax 1 (lbs)

Rear Pax 2 (lbs)

Baggage Area 1 (lbs)

Fuel (gallons) — auto-converts at 6 lbs/gal

Takeoff & Landing Performance

Estimates based on published POH standard conditions. Consult actual POH charts for flight planning.

Aircraft

Density Altitude 3,500 ft

014,000 ft

Headwind 0 kt

040 kt

Aircraft Weight (lbs)

Runway Surface

Top of Descent

Current Altitude (ft MSL)

Target Altitude (ft MSL)

Groundspeed (kts)

Descent Method

Descent Rate (fpm)

Descent Angle (°)

Glide Distance

Aircraft (optional — pre-fills glide data)

Current Altitude AGL (ft)

Best Glide Speed (kts)

Glide Ratio (X:1)

Wind positive = headwind, negative = tailwind

Load Factor & Stall Speed in Turns

Aircraft (optional — pre-fills Vs1)

Bank Angle (°)

Clean Stall Speed Vs1 (kts)

Va Adjustment for Weight

Aircraft (optional — pre-fills Va data)

Published Va (kts)

Published Va Weight (lbs)

Actual Weight (lbs)

Climb Gradient

Climb Rate (fpm)

Speed Input

True Airspeed (kts)

VMC / Single-Engine Reference — PA-44-180 Seminole

Static reference values from PA-44-180 POH. Verify against your specific aircraft's AFM/POH.

Speed / Value	Knots / Value	Note
Vmc — Min Control Speed	56 kts	Min speed with one engine inop, directional control maintained
Vyse — Best S/E Rate Climb	88 kts (Blue Line)	Best single-engine climb rate speed
Vxse — Best S/E Angle Climb	82 kts	Best single-engine climb angle (obstacle clearance)
S/E Service Ceiling	4,100 ft	At max gross weight, standard atmosphere
S/E Climb Rate (SL)	217 fpm	At max gross weight, sea level standard day
Vmc vs Vs1	Vmc 56 / Vs1 61	Vs1 > Vmc — aircraft may stall before losing directional control

Critical actions at engine failure: Identify (dead foot = dead engine), verify (throttle to idle), feather. Maintain Vyse (88 kts) or Vxse (82 kts) for obstacle clearance. Never slow below Vmc with asymmetric thrust.