Weather Conversion Calculators
Written By Mr. Milt Kooyman, SAIC, Shaw OWS
Distance Speed Pressure Weight Volume Wind Chill Cross/Tail Wind Temperature Humidity Heat Index H/T D-Val Press Alt Density Alt

Distance Conversion Calculator

Meters Inches Feet Yards Miles Nautical
Miles

 

Distance Speed Pressure Weight Volume Wind Chill Cross/Tail Wind Temperature Humidity Heat Index H/T D-Val Press Alt Density Alt

Speed Conversion Calculator

Meters per
Second		 Kilometer
per Hour		 Miles per
Hour		 Knots per
Hour
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Distance Speed Pressure Weight Volume Wind Chill Cross/Tail Wind Temperature Humidity Heat Index H/T D-Val Press Alt Density Alt

Pressure Conversion Calculator

Standard
Atmosphere		 Inches of
Mercury		 Millimeters
of Mercury		 Millibars
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Distance Speed Pressure Weight Volume Wind Chill Cross/Tail Wind Temperature Humidity Heat Index H/T D-Val Press Alt Density Alt

Weight Conversion Calculator

Grams Kilograms Ounces Pounds Troy
Pounds
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Distance Speed Pressure Weight Volume Wind Chill Cross/Tail Wind Temperature Humidity Heat Index H/T D-Val Press Alt Density Alt

Volume Conversion Calculator

Liters Fluid
Ounces		 Quarts Gallons Imperial
Gallons
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Distance Speed Pressure Weight Volume Wind Chill Cross/Tail Wind Temperature Humidity Heat Index H/T D-Val Press Alt Density Alt

Wind Chill Calculator

Temperature (Fahrenheit)
Wind Speed (Knots)

Wind Chill  
New Wind Chill
New NWS Formula (Nov 2001)		  

New Wind Chill Chart
NOTE:
Speeds of 4 knots per hour or less have little effect on the old wind chill,
and
Speeds of 3 knots per hour or less have little effect on the new wind chill.
 

Distance Speed Pressure Weight Volume Wind Chill Cross/Tail Wind Temperature Humidity Heat Index H/T D-Val Press Alt Density Alt

Surface - Cross / Head / Tail Wind Calculator

Type in the following
information		 Runway
(i.e. 220)		 Wind Direction
(i.e. 270)		 Wind Speed
Knots

 The Crosswind is
Knots		 The Head(+) / Tail(-) wind is
Knots

Flight Level - Cross / Head / Tail Wind Calculator

Type in the following
information		 Aircraft Heading
(i.e. 220)		 Wind Direction
(i.e. 270)		 Wind Speed
Knots

 The Crosswind is
Knots		 The Head(+) / Tail(-) wind is
Knots
 
Distance Speed Pressure Weight Volume Wind Chill Cross/Tail Wind Temperature Humidity Heat Index H/T D-Val Press Alt Density Alt

Temperature Calculator

Enter the
Temperature
 
Distance Speed Pressure Weight Volume Wind Chill Cross/Tail Wind Temperature Humidity Heat Index H/T D-Val Press Alt Density Alt

Relative Humidity Calculator

Temp oF Dew Point oF %
Temp oC Dew Point oC %
Calculate Dew Point from Temp and Relative Humidity
Temp oF Rel Humidity % oF Dew Point
Depression		 oF
 
Distance Speed Pressure Weight Volume Wind Chill Cross/Tail Wind Temperature Humidity Heat Index H/T D-Val Press Alt Density Alt

Heat Stress Index Calculator

Temp oF Relative Humidity Dew Point oF =
OR
Temp oF Dew Point oF Relative Humidity =

Fighter Index of Thermal Stress

Temp oF Dew Point oF
 
Distance Speed Pressure Weight Volume Wind Chill Cross/Tail Wind Temperature Humidity Heat Index H/T D-Val Press Alt Density Alt

Height and Temperature D-Val Calculator

Enter Forecast Altimeter Setting for Altitude Variation
(Remember to estimate high.)		 Ex.
29.92
Level Std Height Enter
Actual Height		 Std Temp Enter Actual
Temp (°C)		 Height (ft)
D-Val		 Temp (°C)
D-Val		 Altitude
Variation
1000 MB 364 ft / 111 m ft or m +14.2 oC
925 MB 2498 ft / 762 m ft or m +10.0 oC
850 MB 4781 ft / 1458 m ft or m +5.7 oC
700 MB 9882 ft / 3013 m ft or m -4.6 oC
500 MB 18289 ft / 5576 m ft or m -21.2 oC
400 MB 23574 ft / 7187 m ft or m -31.8 oC
300 MB 30065 ft / 9166 m ft or m -44.6 oC
250 MB 33999 ft / 10366 m ft or m -52.3 oC
200 MB 38662 ft / 11787 m ft or m -56.4 oC
Atmosphere
 
Distance Speed Pressure Weight Volume Wind Chill Cross/Tail Wind Temperature Humidity Heat Index H/T D-Val Press Alt Density Alt

Pressure Altitude Calculator

Enter Field Elevation (feet) or  
(Does not work in Netscape)
ALSTG .00 .01 .02 .03 .04 .05 .06 .07 .08 .09
29.40
29.50
29.60
29.70
29.80
29.90
30.00
30.10
30.20
30.30
30.40
30.50
 
Distance Speed Pressure Weight Volume Wind Chill Cross/Tail Wind Temperature Humidity Heat Index H/T D-Val Press Alt Density Alt

Density / Pressure Altitude Calculator

Enter the following information:
Temp (oF) Dew Point (oF) ALSTG (30.04) (in)
  or Stn Elev (Ft)
Density Alt = (ft) (m) Station Press
(mb)
Press Alt = (ft) (m) Virtual Temp
(oF)