Air Density Online

weather calculations for racers

Free Weather Calculations based on weather data you input
Real-time information based on current weather observations at various race tracks.
Jet your car from anywhere with an internet connection

Dec 7, 16 - Check out Alkydigger.net, our newest dealer

Recently we started a dealer program where our partners help get the word out about our site. We are proud to announce Alkydigger.net as our first dealer. They are a great company that provides fuel injections, superchargers, and drives.

Thanks to Alkydigger.net, you can try ProCalc for free for 15 days! Sign up here!


Dec 2, 16 - New from November

November has come and gone and we are well into the Holiday Season. We announced our new ProTuning Package that is coming soon! We also added a couple of tracks:

If you don't see your track in the list, contact us so we can add it to our site.


Nov 19, 16 - Understanding the difference between corrected and uncorrected barometer

The value we see as barometric pressure is a way of measuring the pressure of the column of air above us. The higher we go in elevation, the less that pressure becomes. Therefore lower barometer values are correlated with higher altitudes. You might have heard the term density altitude. That is taking the current weather conditions and applying them to conditions at a certain altitude. Similarly, barometer values can be used to estimate altitude.

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