Exhibit 12
WASHINGTON REAL ESTATE INVESTMENT TRUST
Computation of Ratios
(In thousands)

Earnings to fixed charges ratio:
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2013
 
2012
 
2013
 
2012
Income from continuing operations
$
5,263

 
$
5,694

 
$
9,218

 
$
10,528

Additions:
 
 
 
 
 
 
 
   Fixed charges
 
 
 
 
 
 
 
       Interest expense
16,152

 
15,470

 
32,670

 
31,301

       Capitalized interest
190

 
433

 
483

 
858

 
16,342

 
15,903

 
33,153

 
32,159

Deductions:
 
 
 
 
 
 
 
       Capitalized interest
(190
)
 
(433
)
 
(483
)
 
(858
)
Adjusted earnings
21,415

 
21,164

 
41,888

 
41,829

Fixed charges (from above)
$
16,342

 
$
15,903

 
$
33,153

 
$
32,159

Ratio of earnings to fixed charges
1.31

 
1.33

 
1.26

 
1.30


Debt service coverage ratio:
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2013
 
2012
 
2013
 
2012
Net income attributable to the controlling interests
$
5,263

 
$
6,008

 
12,598

 
$
11,189

Additions:
 
 
 
 
 
 
 
       Interest expense
16,152

 
15,533

 
32,670

 
31,428

       Real estate depreciation and amortization
25,582

 
25,591

 
51,106

 
51,585

       Income tax expense
24

 
158

 
24

 
171

       Non-real estate depreciation
215

 
261

 
411

 
529

 
41,973

 
41,543

 
84,211

 
83,713

Deductions:
 
 
 
 
 
 
 
       Gain on sale of real estate
—

 
—

 
(3,195
)
 
—

Adjusted EBITDA
47,236

 
47,551

 
93,614

 
94,902

Debt service
 
 
 
 
 
 
 
       Interest expense
16,152

 
15,533

 
32,670

 
31,428

       Principal amortization
811

 
1,447

 
1,643

 
2,900

 
$
16,963

 
$
16,980

 
$
34,313

 
$
34,328

Debt service coverage ratio
2.78

 
2.80

 
2.73

 
2.76