<Page> Exhibit 11.1 FIVE STAR QUALITY CARE, INC. STATEMENT RE: COMPUTATION OF PER SHARE EARNINGS (amounts in thousands, except per share amounts) <Table> <Caption> Nine Months Ended For the Year Ended September 30, 2001 December 31, 2000 ------------------ ------------------ Net loss ................................. $ (760) $ (1,316) ======= ========== Weighted average shares outstanding(1) .................. 4,617 4,617 Earnings per share ....................... $ (0.17) $ (0.29) ======= ========== </Table> (1) During the periods Five Star Quality Care, Inc. was a wholly owned subsidiary of Senior Housing Properties Trust. The weighted average shares outstanding assumes completion of the spin-off distribution and gives effect to common shares issued as part of Five Star Quality Care, Inc.'s acquisition of FSQ, Inc.