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

Jul 21, 16 - Weather feeds for tracks pages should be working again

Over the last week we've had some problems with the consistency of our weather feeds. Everything should be up and running smoothly again. Check out the tracks list to see the current weather for your location.

We are constantly adding new tracks to our list. If you know of a track you don't see listed, let us know and we'll add it.


Jul 13, 16 - Current problems with track weather feeds

We are currently experiencing problems with our track weather feeds and have taken down the forecasted data for the time being. It will be restored as soon as the feeds are restored. We apologize for the inconvenience.


Jun 30, 16 - New tracks for June 2016

We've added a few more tracks to the tracks list for weather. Check them out:

If there is a track in the United States, Canada, or Australia you'd like to see added to the list, let us know and we'll add it ASAP!


Jun 6, 16 - New feature for Pro-Calc users

We have added a different weather service for registered Pro-Calc users! Unregistered users will still see the feeds from the National Weather Service which is only updated hourly. Registered user who view the tracks section will get weather updated approximately every 20-30 minutes.

We also have an experimental feature in the free calcs section in which registered users can enter an address and get air density and density altitude values for that location!

If you'd like to give it a try, we have a 30 day trial available. sign up here!


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