EXHIBIT 11 COMPUTATION OF NET EARNINGS PER SHARE DONALDSON COMPANY, INC. AND SUBSIDIARIES (Dollars in Thousands Except Per Share Amounts) Year Ended July 31 1994 1993 1992 ---- ---- ---- Primary Average shares outstanding 27,026,291 27,582,628 27,497,198 Effect of stock options based on the treasury stock method using average market price 260,338 233,866 469,350 ----------- ----------- ----------- Total 27,286,629 27,816,494 27,966,548 =========== =========== =========== Earnings before accounting change $ 31,949 $ 28,214 $ 25,769 Cumulative effect of accounting change 2,206 -- -- ----------- ----------- ----------- Net Earnings $ 34,155 $ 28,214 $ 25,769 =========== =========== =========== Earnings Per Share: Earnings before accounting $ 1.17 $ 1.01 $ .92 change Cumulative effect of accounting change .08 -- -- ----------- ----------- ----------- Net Earnings Per Share $ 1.25 $ 1.01 $ .92 =========== =========== =========== Fully Diluted Average shares outstanding 27,026,291 27,582,628 27,497,198 Effect of stock options based on the treasury stock method using average market price during the year or ending market price, whichever is higher 287,074 270,834 485,182 ----------- ----------- ----------- Total 27,313,365 27,853,462 27,982,380 =========== =========== =========== Earnings before accounting change $ 31,949 $ 28,214 $ 25,769 Cumulative effect of accounting change 2,206 -- -- ----------- ----------- ----------- Net Earnings $ 34,155 $ 28,214 $ 25,769 =========== =========== =========== Earnings Per Share: Earnings before accounting change $ 1.17 $ 1.01 $ .92 Cumulative effect of accounting change .08 -- -- ----------- ----------- ----------- Net Earnings Per Share $ 1.25 $ 1.01 $ .92 =========== =========== =========== All share and per share amounts have been adjusted for all stock splits.