title: Calculate contract end date in Salesforce?
body: <p>is there a work around towards calculating the accurate contract end date for a closed deal in Salesforce?  We have a field which calculates the contract end date based on the <code>[ Revenue_Date__c + ( Contract_Length__c * 30) ]</code> , however, this is based on the assumption all months have 30 days, is there a work around this to get a more accurate contract end date?<br>
  We are on a Professional edition of Salesforce. </p>