EXHIBIT 11.1 STATEMENT RE: COMPUTATION OF EARNINGS (LOSS) PER SHARE USA TRUCK, INC. - -------------------------------------------------------------------------------- <Table> <Caption> Three Months Ended March 31, ------------------------------ 2002 2001 ------------ ------------ Numerator: Net income (loss) $ 73,853 $ (404,910) ============ ============ Denominator: Denominator for basic earnings per share- Weighted average shares 9,281,856 9,224,550 Effect of dilutive securities - Employee stock options 52,116 7,537 ------------ ------------ Denominator for diluted earnings per share- Adjusted weighted average and Assumed conversions 9,333,972 9,232,087 ============ ============ Basic earnings (loss) per share $ 0.01 $ (0.04) ============ ============ Diluted earnings (loss) per share $ 0.01 $ (0.04) ============ ============ </Table>