Calculate , altimeter setting, relative air , and relative humidity using GPS, weather data, and the phone's barometer. Track specific humidity in grains per pound. Suitable for pilots, engine tuning, and outdoor activities.
by Kristian Ljungkvist★ 4.81,043 ratingsNavigation$3.99Data updated 2026-11-09
Convert units, track measurements, and share results
Measure and convert units for length, weight, temperature, speed, and . Use the built-in ruler tool to measure distances. Convert between units within categories. View conversion history and save frequently used conversions.
Calculate minimum for gas based on rate and pressure loss. Use multiple equations including AGA, Panhandle A, and Weymouth. Automatically adjust for gas density with Ideal Gas Law and CNGA compressibility factor. Input parameters and view results.
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