Enter your course, true airspeed, and the winds aloft. Get the wind correction, heading to fly, and ground speed.
Runway number and the reported wind. Get headwind or tailwind, and crosswind with direction.
You know what you're flying and what the GPS shows — work out the actual wind.
True heading → magnetic (east is least, west is best) → compass, using your deviation card.
Field elevation plus the altimeter setting.
What the airplane thinks the altitude is. Higher means worse performance.
Cold weather makes the altimeter lie high. Actual height above sea level, roughly.
Temperature/dew point spread. Rough — cumulus bases on a convective day.
From calibrated (or indicated) airspeed, pressure altitude, and temperature.
Fill any two — the empty box gets the answer.
Distance, ground speed, and when you depart.
How far off, how far you've come, how far to go. Get the heading change.
Quantity, burn rate, and time — the empty one gets solved.
Distance, ground speed, burn rate — plus whatever reserve you want.
Feet to lose or gain, distance to the point, ground speed. Get the rate to hold.
Your climb rate and ground speed against a required feet-per-mile (departure procedures).
Feet to climb at a given rate.