EXHIBIT 11 Washington Trust Bancorp, Inc. Computation of Per Share Earnings For the Periods Ended March 31, 2001 and 2000 Three months ended March 31, 2001 2000 - ---------------------------------------------------------------------------------------------------------------------- (In thousands, except per share amounts) Basic Diluted Basic Diluted --------------------------------------------------------------------- Net income $154 $154 $3,432 $3,432 Share amounts: Average outstanding 12,012.2 12,012.2 11,936.2 11,936.2 Common stock equivalents - 111.0 - 158.3 - ---------------------------------------------------------------------------------------------------------------------- Weighted average outstanding 12,012.2 12,123.2 11,936.2 12,094.5 - ---------------------------------------------------------------------------------------------------------------------- Earnings per share $.01 $.01 $.29 $.28 - ----------------------------------------------------------------------------------------------------------------------