DA Calculator - Density Altitude Calculator Thompson Drag Raceway


Thompson, OH


This calculator will calculate the Density Altitude (DA) from the given weather conditions for your drag racing runs.

You can enter in the data manually if you have it ready, or you can choose the track and date of the drag racing
run and we will look up the weather and elevation data for you. Weather data is obtained from an airport near the track.

If you want the most accurate DA, check out this Kestrel 4250 racing weather meter, it gives you your DA instantly at the track.

Track:

Date:

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Click on the time to select your run conditions and calcuate your DA:
Time Temperature Humidity Pressure
10/21/2017 00:00:00 53.82 F 64 % 30.22 in
10/21/2017 01:00:00 54.49 F 62 % 30.21 in
10/21/2017 02:00:00 52.7 F 66 % 30.21 in
10/21/2017 03:00:00 51.89 F 66 % 30.22 in
10/21/2017 04:00:00 49.28 F 72 % 30.24 in
10/21/2017 05:00:00 49.23 F 72 % 30.25 in
10/21/2017 06:00:00 49.32 F 73 % 30.26 in
10/21/2017 07:00:00 49.72 F 75 % 30.25 in
10/21/2017 08:00:00 50.7 F 73 % 30.27 in
10/21/2017 09:00:00 52.98 F 73 % 30.29 in
10/21/2017 10:00:00 58 F 66 % 30.28 in
10/21/2017 11:00:00 63.72 F 58 % 30.28 in
10/21/2017 12:00:00 67.56 F 51 % 30.27 in
10/21/2017 13:00:00 68.6 F 49 % 30.26 in
10/21/2017 14:00:00 69.79 F 47 % 30.24 in
10/21/2017 15:00:00 70.9 F 46 % 30.23 in
10/21/2017 16:00:00 71.51 F 45 % 30.22 in
10/21/2017 17:00:00 70.83 F 47 % 30.22 in
10/21/2017 18:00:00 66.83 F 57 % 30.22 in
10/21/2017 19:00:00 63.49 F 65 % 30.26 in
10/21/2017 20:00:00 62.48 F 66 % 30.23 in
10/21/2017 21:00:00 61.61 F 68 % 30.23 in
10/21/2017 22:00:00 61.03 F 70 % 30.22 in
10/21/2017 23:00:00 61.43 F 70 % 30.21 in

Track Elevation:

feet above sea level

Air Temperature:

degrees F

Barometric Pressure:

inches Hg

Relative Humidty:

%



Density Altitude: 1540 feet
Relative Density: 95.57 %

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Correct your ET and MPH using the DA (Beta Testing)

Density Altitude:

feet above sea level

1/4 mile ET:

seconds

1/4 mile trap speed:

MPH

Stock and Mildly Modified Naturally Aspirated Engines
@ MPH

Extensively Modified Naturally Aspirated Engines
@ MPH

Extensively Modified Supercharged and Turbocharged Engines
@ MPH

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