CFLib.org – KelvinToCelsius

KelvinToCelsius(kelvin)

Last updated September 17, 2001

author

Version: 1 | Requires: ColdFusion 5 | Library: ScienceLib

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Description:
Converts degrees Kelvinto degrees Celsius. Note that the Kelvin temperature scale has an absolute zero (negative Kelvin temperatures do not exist). If a temperature below 0 Kelvin (absolute 0) is passed, the funciton will return an invalid result.

Return Values:
Returns a float.

Example:

<CFSET k=100>
<CFOUTPUT>
Given k=#k#<BR>
#k# degrees Kelvin = #KelvinToCelsius(k)# degrees Celsius.
</CFOUTPUT>

Parameters:

Name	Description	Required
kelvin	Degrees Kelvin you want converted.	Yes

Full UDF Source:

	
	<cfscript>
/**
 * Converts degrees Kelvin to degrees Celsius.
 * Minor enhancements by Rob Brooks-Bilson (rbils@amkor.com).
 * 
 * @param kelvin      Degrees Kelvin you want converted. 
 * @return Returns a float. 
 * @author Tony Blackmon (rbils@amkor.comfluid@sc.rr.com) 
 * @version 1, September 17, 2001 
 */
function KelvinToCelsius(kelvin)
{
  Return kelvin - 273.15;
}
</cfscript>