FORM 10-Q
                                                  MARCH 31, 1996


                                                  EXHIBIT 11


     American Power Conversion Corporation and Subsidiaries
                Computation of Earnings Per Share



                                    Three Months Ended        

                                        March 31,             
                                  1996             1995       
                                       (Unaudited)            
                                                              
 Primary:                                                     
                                           
 Weighted average shares                                      
  outstanding                   93,419,328        92,450,296  
 Net effect of dilutive                                       
  stock  options and warrants                                        
  based on the treasury stock                                          
  method using the average 
  market price                     331,119           886,437

     Total                      93,750,447        93,336,733  
                                                              
 Net Income                    $15,212,570       $18,269,813  
                                                              
 Per share amount                    $0.16             $0.20  
                                                              
 Fully Diluted:                                               
 Weighted average shares                                      
  outstanding                   93,419,328        92,450,296  
 Net effect of dilutive                                       
  stock options and warrants                                        
  based on the treasury stock                                       
  method using the period end 
  market price                     367,297           829,456  

     Total                      93,786,625        93,279,752  
                                                              
 Net income                    $15,212,570       $18,269,813  
                                                              
 Per share amount                    $0.16             $0.20  

                                                              



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