Exhibit 12 to 2002 10-Q CONVERGYS CORPORATION Computation of Ratio of Earnings to Fixed Charges (Amounts in millions) For the Three Months Ended Earnings: March 31, 2002 -------------- Income before income taxes, extraordinary charges and cumulative effect of change in accounting principle $ 94.3 Adjustment for undistributed (income)/losses of partnerships 2.5 Interest expense 3.6 Portion (1/3) of rental expense deemed interest 9.4 ---------- Total earnings $ 109.8 ========== Fixed Charges: Interest expense $ 3.6 Portion (1/3) of rental expense deemed interest 9.4 ---------- Total fixed charges $ 13.0 ========== Ratio of Earnings to Fixed Charges 8.45 ==========