Weather Calculations
Temperature
Pressure
Dew Point
Heat Index
Wind Chill
Electricity Costs
°F (Fahrenheit)
°C (Celsius)
°K (Kelvin)
°R (Rankin)
°F (Fahrenheit)
°R (Rankin)
°C (Celsius)
°K (Kelvin)
Temperature Conversion Equations
F=(1.8C)+32
F=(1.8K)-459.67
F=R-459.67
C=(F-32)/1.8
C=K-273.15
C=(R-491.67)/1.8
K=(F/1.8)+255.37
K=C+273.15
K=R/1.8
R=F+459.67
R=(1.8C)+491.67
R=1.8K
Atmospheres
PSI
Inches of mercury
mm of mercury
millibars
kilopascals
Calculate
Atm
PSI
inHg
mmHg
mbar
kPa
Standard atmospheric pressure is:
1 Atm (Atmosphere)
14.7 PSI (lbs per sq inch)
29.9213 inHg (in. of mercury)
760 mmHg (mm of mercury)
1013.25 mbar (millibars)
101.325 kPa (kilopascals)
Temperature (in °F)
% Humidity
Dew Point (in °F)
The humidity must be 50% or higher.
Temperature (in °F)
% Humidity
Heat Index (in °F)
Temperature (in °F)
Wind Speed (in MPH)
Wind Chill (in °F)
Utility Rate
Last Utility Bill
$
for
kWh
-or-
Known Rate
$
per kWh
Device Rating & Usage
Volts
Amps
Watts
-or-
Daily Usage
Hours
Device Costs
Enter values above.
Calculate
Reset