Exhibit 12

WASHINGTON REAL ESTATE INVESTMENT TRUST

Computation of Ratio of Earnings to Fixed Charges

(In thousands)

 

     Q3 2009     Q3 2008     YTD 2009     YTD 2008  

Income from continuing operations

   $ 4,229      $ 3,945      $ 20,520      $ 3,274   

Additions:

        

Fixed charges

        

Interest expense

     18,224        18,447        57,221        56,187   

Capitalized interest

     345        477        1,003        2,049   
                                
     18,569        18,924        58,224        58,236   

Deductions:

        

Capitalized interest

     (345     (477     (1,003     (2,049

Net income attributable to noncontrolling interests

     (53     (48     (154     (158
                                

Adjusted earnings

   $ 22,400      $ 22,344      $ 77,587      $ 59,303   
                                

Fixed Charges (from above)

   $ 18,569      $ 18,924      $ 58,224      $ 58,236   

Ratio of Earnings to Fixed Charges

     1.21        1.18        1. 33        1.02