Aircraft Perf Calculator

Trusted by 6,000+ pilots. Real-world takeoff & climb performance in seconds — now with QNH correction and full offline use.

Real-time performance calculations

Performance turns your takeoff numbers into an instant read-out. No more paper charts in the cockpit — enter your manufacturer data and the app does the rest.

KEY FEATURES

Adjusted takeoff distance Computed automatically for the current altitude and temperature

Corrected climb rate The real-world impact of density altitude on your performance

Runway usage The percentage of runway required, shown at a glance

Density altitude Automatic standard ISA calculation

Comprehensive database Over 29,000 airfields (ICAO codes and names)

Geolocation Airfields within a 100 NM radius Calculations at your current position Real-time GPS altitude and temperature

Built-in weather Temperature and elevation estimated automatically via Open-Meteo

Visual alerts Color-coded for normal, good, degraded, or poor conditions

TRUSTED BY OVER 6,000 PILOTS

Co-developed with Xavier ULLIANA — microlight instructor and mountain pilot, and a member of France's national Mountain Flying division.

"In the mountains and on the flatlands alike, density altitude isn't a theoretical notion — it's a daily reality. Performance gives me an instant, clear picture of my true performance." — Xavier ULLIANA, Microlight Instructor

Algorithm based on the Koch curve, with validated correction factors.

PRACTICAL AND RELIABLE

Works offline Automatically saves your settings Favorites list for the airfields you fly most Available in French and English Real-time calculations

IMPORTANT

Performance is a decision-support tool. The pilot in command remains responsible for:

Verifying all calculations The final assessment of flight conditions The final decision to take off Compliance with their aircraft's flight manual

Factors such as crosswind, runway slope, and surface condition remain for the pilot to assess.

Always verify against your flight manual.

Safe flights!