CFLib.org – Common Function Library Project

Description:
Converts degrees Celsius to degrees Rankine. Note that the Rankine temperature scale has an absolute zero (negative Rankine temperatures do not exist). If a temperature below -273.15 Celcius (absolute 0) is passed, the funciton returns -1.

Return Values:
Returns a float.

Example:

<CFSET c=100>
<CFOUTPUT>
Given c=#c#<BR>
#c# degrees Celsius = #CelsiusToRankine(c)# degrees Rankine.
</CFOUTPUT>

Parameters:

Full UDF Source:

<cfscript>
/**
 * Converts degrees Celsius to degrees Rankine.
 * Minor enhancements by Rob Brooks-Bilson (&#114;&#98;&#105;&#108;&#115;&#64;&#97;&#109;&#107;&#111;&#114;&#46;&#99;&#111;&#109;).
 * 
 * @param celsius 	 Degrees Celsius you want converted to degrees Rankine. 
 * @return Returns a float. 
 * @author Tony Blackmon (&#114;&#98;&#105;&#108;&#115;&#64;&#97;&#109;&#107;&#111;&#114;&#46;&#99;&#111;&#109;&#102;&#108;&#117;&#105;&#100;&#64;&#115;&#99;&#46;&#114;&#114;&#46;&#99;&#111;&#109;) 
 * @version 1, September 17, 2001 
 */
function CelsiusToRankine(celsius)
{
  if (celsius lt -273.15)
    return -1;
  else
    return (celsius*1.8)+491.67;
}
</cfscript>