Free tools

Free tools for pilots, owners and flight schools

Calculators and references we built for our own customers. No sign-up, nothing to install.

Aircraft cost-per-hour calculator
Fixed costs, fuel, maintenance and engine reserve, turned into one honest number per hour.
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Private pilot hours checklist
Enter your logbook totals and see exactly what you still need for the checkride.
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CFI endorsement templates
Fill in the student and aircraft, copy the wording into the logbook.
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N-number to Mode S code converter
Get the ICAO 24-bit hex address the FAA assigns to a US registration.
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Looking for explanations rather than calculators? Read the SkyRes guides.