Free pilot tools

Density altitude and true airspeed, the wind triangle (heading and groundspeed with a live diagram), and cloud base — the flight-computer math without the wheel.

Fetch the live report for any airport, or paste a raw METAR, and read it in plain English — wind, visibility, ceiling, temperature, and a VFR/MVFR/IFR/LIFR call.

Usable fuel, burn, and cruise speed into endurance, still-air range, and a §91.151 reserve check — the numbers before the dipstick confirms them.

Load the seats, baggage, and fuel and watch the CG land inside — or outside — the envelope, on a live weight-vs-CG chart. A PA-28 example you edit for your aircraft.

Density altitude, weight, and wind into ground roll and the over-50-ft distance, checked against your runway — the POH method, worked on a PA-28 example.

Ceiling, visibility, wind, and density altitude banded green/amber/red against your personal minimums — a one-look decision aid before you commit.

Speed, distance, altitude, volume, weight, temperature, and pressure — the conversions you actually reach for in the cockpit, live as you type.

The magnetic compass acceleration (ANDS) and turning errors, on a live card — plus a reference for the gyro and pitot-static instrument errors.

Set the runway and wind and read off the headwind and crosswind components, checked against your personal limit and the gusts.